I m a 36 yr old mother of three. AF came on 4/25/15... I had unprotected sex on that day. It normally lasts 7 days however, this time it lasted only three days. I normally have a 30-32 day cycle. I had unprotected sex on 5/4/2015 and again today 5/9/2015. For the last three days I have felt bloated... any reason why?