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How to Tell if You’re Pregnant When You’re Taking Birth Control

on Nov 04, 2012

by Dr. Prabha Sahgal, MD

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How to Tell if You’re Pregnant When You’re Taking Birth Control

Although birth control pills prevent you from getting pregnant, they are not 100% effective. With the slight possibility of pregnancy, find out how to tell if you're pregnant when you're taking birth control.

Although birth control pills have the role to prevent you from getting pregnant, none of these treatments are 100% effective. As a result, you can conceive even when you take your pills on a daily basis, without realizing it, so, the following information on how to tell if you’re pregnant when you’re taking birth control should come in very handy. Here is a list with the 6 most common and easy to notice symptoms. Claim Your 20 Free Pregnancy Tests – Click Here

Exhaustion

If you feel exhausted during the day, even having enough sleep, it may be a sign that you are pregnant. As soon as the egg is fertilized and it is implanted in the uterus, the body begins to produce increased amounts of progesterone, a hormone that plays an important role during pregnancy. The process can make you feel tired and sleepy.

Nausea

Nausea, manifested especially in the morning, is another sign of pregnancy, not necessarily related to the birth control pills you were taking, that appears after two weeks from the fertilization of the egg, or in the second half of the first pregnancy trimester.

Cramps

Light cramps in the lower part of the abdomen is another symptom common to most lists on how to tell if you’re pregnant when you’re taking birth control pills. This symptom, also known as uterine cramps, appears when the egg is implanted in the uterus, and it is experienced in the first couple of weeks following conception.

Weight fluctuations

Unusual weight fluctuations can also indicate a pregnancy, being the result of the secretion of certain hormones in quantities greater than normal. While some women start to put on weight as soon as they conceive, others may lose some pounds in their first weeks of pregnancy.

Light bleeding

A light bleeding, called implantation bleeding, that occurs after the period may also be a sign that you conceived while taking birth control pills. This symptom is the result of the egg being attached to the lining of the uterus, and it usually happens in the first or second week after the egg is fertilized.

Rise in basal temperature

A higher than normal basal temperature is usually considered a symptom of the forthcoming ovulation. However, if the temperature remains elevated for days and even weeks after the egg is released, it is a great possibility for the fertilization to take place even under the influence of the birth control pills.

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How to Tell if You’re Pregnant When You’re Taking Birth Control, 4.8 out of 5 based on 5 ratings

Dr. Prabha Sahgal MD, is board certified in obstetrics and gynecology and subspecialty board certified in reproductive endocrinology and infertility. Dr. Sahgal holds a B.S. degree from MIT in molecular biology and currently serves on the ConceiveEasy board of directors.

Related posts:

  1. Can You Get Pregnant on Birth Control?
  2. Infertility and Birth Control Pills
  3. Getting Pregnant After Birth
  4. Stages of Labor and Birth
  5. Period or Early Pregnancy Bleeding?
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  • tricia3265065

    Hi I’m trying to get pregnant but nothing working.. I think its because I don’t have sexual intercourse on the actual ovulation date its the the reason why or my husband he smoke cigarettes…

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  • Neka074

    I was on birth control well da shot and me and my boyfriend want another baby and its hard.. Is there anything I can do to get pregnant.. We already have a lit girl..

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  • wendy984

    i have a daughter, and after that i had two misscariages,all my test was good,what is keeping me from getting pregnant,i need some answers.

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  • Dr. Christine Lee, MD

     A miscarriage should not prevent you from conceiving another child. Do not worry, conceiving can take a lot of time for some couples. There are lots of ways for you to get pregnant faster. You can use an ovulation prediction kit to help you determine when you are about to ovulate so you can have intercourse and boost your chances of fertilization.

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  • sharon19

    Im on ortho patch ,I always change my patch on monday and one monday I forgot bc it was a holiday and i forgot to bring it with me .so i didnt get a chance to put in on in about 24 hours .My mom said to just put it on right away and i would be fine .but about 2 weeks later my period was very irregular I was a little confused bc my period is always a normal flow since ive been on the patch ….I do have some pregnancy symptoms but im not sure if i should just take a pregnancy test i just wanted someones opinion .

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  • Dr. Prabha Sahgal, MD

    If you are unable to change your patch for more than 24 hours and have not used a non-hormonal contraception backup, you may be at risk for pregnancy. It is best that you take a home pregnancy test using your first morning urine as it is more accurate to make if you are pregnant or not.

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  • Meganh8334

    For the past month every other week I will wake up vomiting I take ortho trycyclin low everyday I just had my period 2 weeks ago…could I be pregnant?

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  • MR

    I have been on pills for about 7 months never had a problem before.. I started bleeding today and have light cramps… the last 3 days I have been moody and Exhausted!! but I don’t normally start for about 10 to 11 days from now I took a pregnancy test but it was negative..could I still be pregnant? or should I go see my Doctor or wait it out for a few weeks?

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  • Michaela

    I’ve been on the nuvra ring for 3 months.. I missed my period but I’m only 15. How can I tell if I’m pregnate?

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  • Monica Scott, RN

    Considering the fact that you want to have a baby, both of you should stay healthy. Quitting smoking doesn’t only increase your chances of getting pregnant but making your husband healthy as well. Regarding ovulation, you may try charting your cycle and you may use OPK’s for better results.

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  • Monica Scott, RN

    Since it is unlikely to miss your period while on NuvaRing, there is a possibility that you could be pregnant. It is best that you take a pregnancy test 14 days after the day you first missed your period and immediately consult your personal Gynecologist.

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  • Dr. Renee Hanton, MD

    The probability for you to be pregnant is most unlikely, since you recently had your period two weeks ago. It is best that you talk to your doctor to determine the cause of your regular vomiting.

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  • Monica Scott, RN

    Since you have just been off your Depo Provera shots, getting pregnant may take a long time for you. Though conception is already possible as soon as 3 to 4 months after your last shot; its hormonal effects on your body may prevent you from getting pregnant up to 2 years. You should try to take herbal fertility supplements such as Dong Quai and Maca root for you to boost your body’s fertility.

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  • Maureen Stephens, RN

    Yes, there is a very good probability that you might be pregnant. Your spotting may already be due to implantation bleeding, and your light cramps, moodiness and exhaustion are considered to be early pregnancy symptoms. I do recommend that you take a pregnancy test 14 days after the first day that you have missed your period for a reliable result. However; you can as well see your doctor and immediately get a blood pregnancy test if you immediately want to confirm your pregnancy.

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  • Mylife666

    I have been on birth control since I was 14 years old. So for about 7 years being I just turned 21. I have been consuming mass amounts of alcohol and have been having unprotected sex with my boyfriend. I did have my period, it ended; and I’m feeling super nauseas at night and in the morning, exhausted, and moody. I started feeling this way 3 days after my period ended. 3 days after my period ended I took 2 pregnancy tests that came out negative but I feel I took them too early. Can I be pregnant? And if I am, do you think there’s damage from alcohol?

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  • Shine

    I been on birth control for more Than a year now.but these past two months I got my period a little sooner and this month that im suppose to get it.(the end of the month) I haven’t gotten it. Is this because my body might be changing?

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  • Monica Scott, RN

    The symptoms you have been experiencing are probable signs of pregnancy. There are rare cases that a woman can get pregnant even if she is on birth control. Since you missed you period this month, wait till 2 weeks after to take a pregnancy test to confirm if you have conceived or not.

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  • Tina

    I’ve been having a few symptoms but not sure if I’m pregnant or not. My breast are becoming bigger, headaches, always tired, and nausea to name a few. I started back on my birth control since my cycle recently ended but in less than an hour of taking the pill I started bleeding all over again. Any idea why???

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  • Thegirlwhodoesntknow

    I’m scared that I’m might be pregnant. My stomach is really hard. I had sex on Saturday but I’m on the depo but I’m really scared and don’t know what to do. I wanna cry cuz I’m young and afraid :’(

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  • Christen

    I have been on nuvaring for 7 months. My put in and removal day is Sunday. Usually when I remove the ring for the week off I don’t start until Thursday or Friday. I had unprotected sex with my husband twice during the time I had the ring out. This past Sunday when I was supposed to put the ring back in I still had not bled yet. Later that evening we had sex again and I bled after sex. I figured I started but have not had any blood since then and today is Tuesday. I have not put in another ring as my husband and I are not going to prevent a pregnancy and would gladly welcome one. Could I be pregnant or is it possible that I just had a lite period?

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  • ??

    Hello! I have been taking BC pills regularly for several years now. I always take them right on time except a couple times missing one, but the booklet says to just take it as soon as you remember and no backup method is needed. I had my period just as usual this past time. But when I started my new pack I noticed an increased reaction to it. A few times in the past I got neaseous from it or headache. Every day since I started this new pack, I have been neaseous. Took the first one on Tues. On Friday I was so sick feeling in the am that I was throwing up bright neon green/yellow fluid. This escalated into emerging headache, body aches, and fever. I kept feeling ill all day into the late night. Today on Sat I feel much better tho still a bit neaseous. I kept taking my pills as normal. What could this mean? Just bad reaction to pill? Is there possiblity of pregnancy? Did I just catch a stomach bug? Thanks for your condideration!

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  • Julie Dawn

    Hi. I always take my pill at 7 am sharp. But the other day I took it a few minutes after 8. Does this matter?

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  • holly

    Hi I am currently on bc from just recently having baby 9wks ago we r planning for another so I quit takin it for few days then changed his mind no child right now but we had sex and I started to take bc again and now have started with light bleeding bright red for alil bit then it turn pink for like 2 days im not expecting period til 11 more days how do I tell if its implantation bleeeding I never had with my first pregnancy

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  • Curious

    I am on the pill, but 2 weeks ago I was put on antibiotics and steroids for a bad flu I picked up… Today I experienced and still experiencing cramping and tender breast… Could I be pregnant???

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  • bRue

    I had unprotected sex while I wasn’t on the pill and I was ovulating (was intoxicated) and then a week later I started taking marvelon 28. For a week After starting this pill had crazy mood swings, and PMS symptoms. After that week I felt back to normal. This was about a month ago, and when it came time to take the sugar pills and allow my period to come I just started the new pack (to skip my period). I now realize that was a huge mistake because for about two weeks now my breasts are swollen and tender, I have lower abdominal cramps and I’m nauseous. I’ve felt like I am gaining weight, I am hungry ALL THE TIME. Could I be preg? Or is this just birth control side affects?

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  • jasmine

    Well it sounds to me that if you’re young you probably shouldn’t be having sex in the first place

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  • Bree O’Neil

    Hi there-I’m on the pill, trinessa but have had pregnancy-like symptoms the last week and a half. I have a 17mo who I got pregnant with on the pill. I tried other birth control and the pill is the only one i do ok with. I took a test last night, it was negative. My last period was super short, and started on almost the last day of the sugar pills. What should I do?

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  • MSgirl93

    i was on the depo shot for over a year and now im on Camilla. But the last few days Ive felt like a whale and had very sore tatas. i havent missed a pill, but i havent had a period since i started depo two years ago and thats the tall tale sign of pregnancy…any advice??

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  • kira319

    Ok its my first time im on birth control and im nervous about everything so far im only a day late on my period and im freaking out. I know i might be overreacting but ive had sex with a condom and like the first of my birth control ive had unprotected but thats what im afraid of. But i have no cramps at all and i dont know what to do. Im just scared. When should i take a pregnancy test?

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  • kira319

    First week of birth control i ment

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  • Jenet

    Hi I’ve been taking the pill for about a year and half , and sometimes I take it 8-10 hours late because I forget them at home , I had sex on my period after not taking the placebos for 2 days and on the thjrd day I took the 2 and didn’t take the first placebo pill, I woke up last night really nauseous and I woke up this morning nauseous but saltine crackers don’t help, could I be pregnant? I also felt movements in my womb last month and took a pregnancy test but it was negative .. Should I take another one? I don’t know what to do. And my boyfriend and I are very sexually active.

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  • Jenet

    Oh and the last period I had was really light and only lasted 2 days

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  • Loving him

    I am on the birth control nexalpon and I have been having periods. Does that mean I can still get pregnant?

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  • cheryl

    I just had my son 3 and a half months ago and have been on the combination pill since 6 weeks post pregnancy.. My obstetrician said that I had my period at the 6 week mark after having him.. I’ve taken my pill regularly everyday at the same time and at first my period stopped..for the last 4 1/2 weeks I’ve had some bleeding some light and some heavy but it hasn’t stopped. My breasts have begun producing milk again even though my milk dried up before 6 week post visit. I don’t know if this is normal or not since he was my first child and first time on the combination pill when I’ve only ever taken the mini pill and never experienced this..

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  • ElizaTaylorJo

    I take Alesse birth control pills and my boyfriend doesn’t ejaculate inside of me, and I do know that there is still pre ejaculation. I always have anxiety that I will get pregnant and my period is late but I’m not experiencing any other strange symptoms… What do I do? I don’t want to have a child, I’m only seventeen. Please help :(

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  • Mae Jean Unda

    hihi i take i am taking a birth control pils and i had spotting 1 wk before my period. can i conseder that as an early sign of pregnancy

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  • Evelyn

    I’m 9months pp.. Okay so had my period 2 weeks ago and on Monday I started bleeding very very light pinkish color.. I have had nausea and stomach cramps at the top of my stomach.. The next day it got brighter so i figured I was on my period but thought it was strange because I never have had that happen to me before it literally comes and goes from light pink to bright red and towards the end of the day it’s gone it’s not a lot at all.. Either. I dunno. To anyone else that has had this.. What ended up happening were you pregnant? Was it just adnomral activity in your body. I also have there could be a chance of pregnancy due to my fiancé finishing inside me. And missing a couple of days of not taking the pill.

    Should I still take my birth control pills?

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  • an2589

    Hi my boyfriend ejaculated inside of me but just a little before he pulled up but I am on the pill and have taken it constantly but am still worried as my stomach feels weird two days after sex

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  • sz

    Were you pregnant

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  • sz

    Thats not true. Maybe she’s just scared bcuz she’s not ready to have a baby

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  • llstell

    Hi im on BC and I usually take my pill around the same time sometimes im hours late but I never get any reaction from missing them . this month I was late taking two pills. I took them when I remembered and later that week I started spotting I was spotting for about a week. during that week I had sex with my husband . the spotting stopped for a couple days and then started again a few days before my period was due. Its the day after I was supposed to get my period and im now bleeding more then spotting but it also seems like less then my periods usually are . I feel off and im very very tired . Is there a possiblility that im pregnant? I read my panflit for my bc and read that we should of used a back up method for bc but we didn’t. I have never spotted before on the bc and I have been on it for over a year.

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  • meh

    im bleeding while im taking a birth contrl pills? is it a sign of pregnancy?

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  • meh

    august 12 i have my perod and i start taking pills on my 2nd day of period.. after 8 days taking pills i have sex with my husband and the day after im bleeding August 22 for 4 days.. august 29 i have a spotting again.. pls help.. what will i do?

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