So me and my boyfriend were "dry humping" I had on underwear but he had on noting . . he ejaculated and my underwear were really wet due to that, I chnaged my underwear I touched myself just to see if I was wet, that was on a Sunday and I was expecting my period on Monday, I am on the pill . but I was taking Ampicillin but I stopped like a week or two weeks ago before that Sunday . . or probably earlier I am not to shore! I DID get my period on Monday as expected should I be worried about pregnancy? P.S. sorry if this posted twice I don't know if it went through the first time . . please help!!