Hello, so here is the thing. I did dry humping with a guy. I have had leggings+rather covering underwear on, he was naked though. He ejaculated on my leggings (i cant remember if on vagina area directly but i doubt) then he took a tissue and wiped all his cum off the leggings. There was no penis in vagina intercourse. I have had my periods regular (4 periods now), they are heavy bleeding but 2-3 days but as far as i can recall i used to have 3 day periods before i even started any sexual activity whatsoever and i have been restricting calories and doing diet for three months and i think that might have disturbed my cycle too? So i took 3 pregnancy tests and all were negative. Sometimes people say they saw faint line for positive or something.for me only one line was there and absolutely nothing of second line. On the test. Please help me ease my mind. I also feel pulsating in my belly. I dont know if this is normal. I read on internet that pulse is present in whole body and more while stressing and im really stressed.please help meee