Yes, ibuprofen can mess up your cycle. It is a blood thinner, and it may stop your period for a short time, or it could make it lighter.

I had the same problem earlier this year, and I checked with my doctor to be on the safe side, and they said it was completely normal.

When in doubt, call your doctor or pharmacist.

I submitted a question about taking alot of ibuprofen and now my periods late - I learned that ibuprofen is a blood thinner and it's not abnormal that it's late. I'm 6 days late and a little concerned - just because it's never been this late before - is it still normal? Could I skip my period completely? How long do u think I should wait before taking a pregnancy test? Thank you!

If it makes you feel better, go buy a cheaper pregnancy test (they are usually just as accurate) if it's negative wait one more week then call doc if you still haven't started. I have been pregnant four times (including now) and the latest I took one was four days late...They all came up positive first time. Good luck. P.S. You might want to hold off on the ibuprophen and take tylenol if needed until you know for sure.

Thank u for ur advice mommy4ever but i'm curious if it's possible for me to skip my period all together becuase of the ibuprofen. Because I still haven't gotten my period. I also recently talked to the nurse at my school - she informed me that she never heard of menstrual cycles being effected because of ibuprofen. Did u say this happend to u? Is she wrong?

To be totally honest I have never heard the ibuprophen thing. If anything, it being a blood thinner, it may make you bleed even more, but I am not a doctor, did you get a test? I hope everything is going to be okay for you, and if you are pregnant, you will do just fine, babies are wonderful things no matter what age you are, my sister was 15 when she had her first and she is a better mom than me. you're welcome, and if you do find out that you are pregnant, I can help you with any other questions you might have, I am not a doctor, but I do have lots of experience. Good luck!

Me and my boyfriend decided to try the rythmn method for the first month until I was able to get on birth control. My period was due on sunday, and I am pretty regular. Over the weekend I mad him pull out thinking this was my fertile week, however, he brought it to my suprise that we were already in april. I got my period last month on the 6th of march. I missed my fertil week didn't i????????
Precious

Me and my boyfriend decided to try the rythmn method for the first month until I was able to get on birth control. My period was due on sunday, and I am pretty regular. Over the weekend I mad him pull out thinking this was my fertile week, however, he brought it to my suprise that we were already in april. I got my period last month on the 6th of march. I missed my fertil week didn't i????????
Precious

Read the sticky