So I took Plan B after intercourse about 3 hours after to be exact. I had calculated my ovulation time wrong so I was indeed ovulating at the time of intercourse. So just for the safe side I took Plan B even though there was no ejaculation, but I'm still thinking about pre cum, so all this happened may 18 , now it's June 8th and I got what seemed my period on the 29th of May like always on time. but now I feel my ovaries swollen like I touch my stomach and I can feel to bulges where my ovaries are, is it pregnancy ? I've been taking the home pregnancy test and it says negative but I don't know what to think. please help me out.