I have just got my period agen (on the 11th) when I had my last one start on the 28th and lasted 4days and was light but had sex with my partner the day before. I have a 7 month old baby who is fully breastfed and have been on birth control for 3months. I also have camping pains. When I first had my daughter I had my period for 2 months strait. Also NO foul smell. What's going on? Is it caused from the pill or something else?

The answers you seek are with your doctor.

Sadly we can't really tell you what's going on, we can only guess, and guessing won't help you one bit.

Time to go to you doctor. :)

Good luck.