Bleeding during Sex

I had the same type of thing happen to me. I went overseas and went on the pill to stop my period. I started to spot. I took myself off the pill, but went on a stronger one, but started to spot so I stopped altogether. I got my period. Then after arriving home 3 and 1/2 weeks later I had a normal period. Aweek and a 1/2 after that, I had sex. I bled. Never happened to me before. My Doctor said that because I mucked around with the pill, I probably still had my period that only came out because off the action of sex. This made sense to me because of the spotting. She said hopefully it would ease, but if not I'd have to have a curete. I also had a pap smear and she did a check for tears. I just have to keep an eye on it. But your Doctor would need to know your history, you're not the only one.