Has this happened to anyone else?

So i think i ovulated on monday going into teusday. But monday in the a.m. i had sex with my boyfriend and he came on my. I haven't been ovulating for the past 3 months so i thought i wasn't going to this month either. On teusday i experienced watery come and cramps and a little spotting. My brest also felt really tender. Ever since then the cramps and tenderness continued even right now. Is this normal or because i had sex so close to my ovulation?