Causes of a Missed or Late Period without Pregnancy

on Jan 26, 2013

by Dr. Prabha Sahgal, MD

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Causes of a Missed or Late Period without Pregnancy

A missed or late period can be attributed to a variety of reasons without being pregnant, some of them simple temporary issues and other more serious issues.

The medical term for a missed period is secondary amenorrhea. Not to be confused with primary amenorrhea which is the term for someone who hasn’t yet had their first period. A missed or late period can be attributed to a variety of reasons without being pregnant, some of them simple temporary issues and other more serious issues. Claim Your 20 Free Pregnancy Tests – Click Here


The most common cause of a missed period (barring pregnancy) is stress. Whether you are a few days late, or have missed entire months, stress could be at the root of all your problems. Being stressed out isn’t just an emotional issue; from a fertility point of view, it causes your body to produce less (GnRH) which is the hormone that causes ovulation. Without ovulation, our cycles become disjointed and mixed up, causing a missed period. Stress can also do the opposite and bring periods on early – but that’s another matter entirely!

Not feeling stressed doesn’t mean you aren’t suffering from stress – as this chronic overworker can well vouch for. Major events in your life will put unknowing stress on your body, such as the loss of a loved one, change in employment, geographical relocation, major life changing event, financial or emotional difficulties. If this is the case, do not worry. Sort out your emotional well being first and your body will realign itself back into a regular rhythm.


Even just something as non-serious as the common cold can play havoc with your body’s natural rhythm, again this is nothing to worry about. If you have other health issues though it is always best to mention this to your Doctor, and they can inform you whether this is to be expected or is symptomatic of another problem. Amenorrhea can only be diagnosed after you have missed three consecutive periods. Common disruptions to periods are caused by the following.

Thyroid Problems – These often cause hormonal imbalances. This can be determined with a blood test and medication can correct this, leaving you healthy and able to conceive.

Increased Prolactin – This hormone is secreted when you breastfeed and is why you don’t have any periods when you lactate. Sometimes your body produces this by accident. It usually causes nipple discharge, but can be treated.

Polycystic Ovaries – If you have this condition it will cause you to miss periods and have limited fertility.

If you have another illness then sometimes the medication you take for it will affect your menstrual cycle, this includes anti-depressants, anti-psychotics, oral corticosteroids, and chemotherapy amongst many others.

Change in weight

Obesity: As oestrogen originates in body fat, too much fat will thrown your body’s hormones out of alignment and caused missed periods. Losing weight should see them return.

Weight Loss: If you are underweight then you might not possess enough body fat to produce oestrogen. Female athletes who are very muscular, with low body fat often start their periods later than others and commonly miss them. If you have an eating disorder you may skip periods, whilst others stop having them entirely.


Look at the contraceptives you are taking – you should have been informed by your doctor about how these will affect your periods. Contraceptives work in a variety of different ways from limiting your body’s ovulation cycle by stopping the release of an egg to thickening cervical mucus to make sperm less able to traverse the reproductive tract. Many of these can cause a delaying or stopping of periods which could be a cause for a missed or late period without pregnancy.


Sometimes it sneaks up on us a bit too quickly, whether you are peri-menopause, which is a transition phase or menopausal, your periods will begin to be lighter, then you will start missing them before they finally stop. Menopause can happen at any time, but tends to occur from your late forties onwards. The average onset is 51 years. If you are older, a missed or late period could be attributed to menopause so it is advisable to seek a doctor’s help in such cases.

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Causes of a Missed or Late Period without Pregnancy, 3.7 out of 5 based on 6 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.

  • MoLyla

    I have benn having unprotected sex with my guy for over 2 months and still not prego.. Why?

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  • Kasia Gracefultouch

    Hello, it takes a healthy couple 6 month to a year to get PG. Do you check your cervical mucus, cervix, ovulation test to make sure you do ovulate regularly? Do you have PCOS? Are your periods on time each month? You have to look at all those things and make sure that you don’t have any fertility problems. I know that it’s soooo frustrating when you try and want a baby so bad like I do. I have PCOS but regular periods. We have been tying for a few months and still nothing. I decided to order conceiveeasy kit to help me with getting that positive pregnancy test. You should look into it and all the things I wrote before. Wish you luck. ????

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  • Dr. Christine Lee, MD

    Since there are many factors that may affect one’s conception, I do recommend you to consult your ObGyn in order to specifically determine what prevents you from getting pregnant.

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  • Kezza

    I am 3 weeks late in my period and have done 5 pregnancy tests all negative I’m really worried could I still be pregnant alough I was on the depo injection for 4 years and have been of it for 10 months now could that still be why

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  • anonymous

    My GF was on brith control until the end of june. she had her periods normally in july, august and he last on was suppose to start around sept. 15th. she has no other signs of pregnancy, could the being off the birth control be the reason for the missed period?

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  • anupriya

    my last period was on 26 aug n din get my period till today i had sex on 14oct with condom……n vry tnsed??? what to do !!1

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  • Anyangoh Nyakamreri Topas

    I haven’t have seen my period the last 3 months but I met my husband in the 4th month can I get pregnant

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  • Oley

    i am 3day late

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  • priya

    i m a 28 year old virgin girl not having periods for last 4 months not plz give me some solution to come out of this problem

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