I had sex and my period came back while having it

after sex does it make your period heavier or does it stay the same.

For the past month,everytime I have sex I start bleeding 2 days after...what could this be?

About how many days should I wait to have sex..after my period.? I'm on birth control too!

I had sex, used a condom, and my period came 1 week later normal like it always is and lasted 7 days. Is it possible I could ...

If you have sex, does your period lag it a bit? And also, does your period come a week sooner every month?? So say that you ...

Okay so my period is always off and on. And this may sound strange but I think it's linked to me having sex. I had sex with m...

I had sex on june 10th and my period came on june 6th and see I had sex while my period was on and my sex partner had use two...

I had sex 4 days before my period was due but it came the very next day I had sex. Before this problem I had 2-3 times. Why i...

Me and my boyfriend had protected sex for the first time on 1/21 .I usallyy get my period during that week.but it hasnt came ...

My boyfriend and I have had protected sex every day for three week leading up to my period. I didnt come on my period and I w...