What Could Cause Your Period to Be Late Besides Pregnancy?

Updated on April 20, 2010
A.M. asks from Dallas, TX
10 answers

My period is 17 days late and I dont know why. I am not pregnant. I was sick last month for about 3 1/2 weeks and was on 2 weeks of antibiotics. Could that screw it up? I am not currently taking BC..havent for a long time. I stopped breastfeeding last summer and my periods seemed normal enough up until now.

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So What Happened?

I have not really lost any weight recently. I am very thin to begin with but have never had issues with my periods until after i had my baby about 17 mos ago.

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K.M.

answers from Detroit on

Stress, antibiotics, environment anything can cause the hormones to get out of balance. Check with your Doctor first. If you are interested in an Organic product that helps keep the hormones balanced send me a private message and I will tell you more. I use it for migraine headaches that went away and never came back and I feel great. I have been using the Balancing Cream for 8 years now and it has changed my health and my life.

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S.S.

answers from Seattle on

Medicines could be the reason. Have you had any weight change, because that can mess with your period as well. Stress is another large factor for missing a period or having a heavy one. I wouldn't be too concerned at this point. Some woman skip a period for no reason at all. If you miss two months and you're sure your not pregnant, I would suggest seeing your doctor. It's always best to get checked.

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T.C.

answers from Chicago on

Not sure about the antibiotics, but your pill could cause your period to be late, whether it's a new pill or not.

1 mom found this helpful
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D.W.

answers from Indianapolis on

Stress is probably the most common, but it could be a deficiency in hormones, too much exercise, low body fat (women need to be at ~12% to have normal periods).

I'd personally not recommend doing anything or taking any product until talking it through with your OB/GYN. There's much debate about hormone replacement/bio-identical products and too little actual clinical evidence on what's the most appropriate direction to go to avoid issues such as breast/ovarian cancers.

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C.T.

answers from Detroit on

Stress. and sometimes or body just goes through changes. it could be your hormones may be alittle low or high. Shoot take it as a break. I know i would lol. good luck

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P.H.

answers from Dallas on

I have noticed that about once, sometimes twice a year this happens to me. It's as if my body clock is resetting itself. Granted, their is probably no medical/scientific backing here... I think our bodies are constantly adapting to new stressors, chemicals and of course hormonal changes. I have taken my fair share of negative pregnancy tests. Usually, I start right after taking one. ha!

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T.S.

answers from Savannah on

From what I understand, antibiotics CAN make your periods irregular, as can illness (especially one that hangs around for 3 weeks!). It could be as simple as that.......however, I for one was one of those rare people who took multiple pregnancy tests (I believe five or six total - two of which were done at clinics) which all continued to come back negative until I was well over a month late on my period. I can't say now how I knew, but I KNEW that I was pregnant, despite the tests. I even had one nurse try to convince me to make an appointment for a D & C in order to 'jump start my period' again, as my periods have always been like clockwork. I began to worry about other possibilities such as uterine cysts and even more dire ailments, but as it turns out, I knew my body better than the tests did, because I finally did get that positive test I'd been waiting for!

As a side note, I got another surprise during this pregnancy: After having my initial ultrasound and going through all of the monthly OB appointments with normal results - normal fetal growth, normal size for my due date, strong heartbeat, etc. - I finally went in at 22 weeks to determine the sex of my baby. I got some 'looks' upon arriving due to my unexpected (and extreme) weight gain during the past month, but I had no reason to believe that anything was wrong...and I was right...again. Nothing was WRONG! I was having a healthy baby boy........and his BROTHER! Somehow (and I understand this happens more than one would think) the fact that I was carrying twins was unknown to all until that day!

Moral of this (long) story: Anything is possible, even if it seems unlikely! You could be pregnant......I was, even though all signs said 'no'. That being said, remember that a period delayed by antibiotics/illness (or even stress) is quite common and normal, too.

Best of luck to you!

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V.G.

answers from Portland on

Stress, breastfeeding, not getting enough nourishment... All these things can affect your period.
Make sure you're eating enough, and if you're still breastfeeding, then I wouldn't worry about it at all! :)

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L.T.

answers from Dallas on

A lot of stress can mess with your cycle!

K.N.

answers from Austin on

Your menstrual system is dependent on your percent body fat. If your percent body fat drops too low, then your period (and ovulation) will stop. Since you mention that you are "very thin to begin with", perhaps your percent body fat has recently (and unintentionally) dropped, due to being ill or as part of your post-pregnancy eating routine/adjustment. If it was me, and my period did not reoccur relatively soon, I'd contact a nutritionist and/or my OB about ways to measure (and then increase) my percent body fat.

Here is info on women's health and percent body fat:
http://www.weight-loss-center.net/body_fat_calculator.html
http://ask.yahoo.com/20020327.html
http://lowcarbdiets.about.com/library/blbodyfatcharts.htm
http://www.womenshealthmag.com/weight-loss/measure-body-f...

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