Question!

My boyfriend and I have had unprotected sex 2 days in a row and he did not use the pull out method. Today, about 30 minute to an hour after we had sex my ovaries started to ache. I haven't this problem before. I went to the doctors recently and got tested after my annual checkup and im clean and healthy. anyone have any thought to what it may be? I have 2 days until my period is due but I havent had my usual pre-bloating or cramps yet.