Hi! So me and my boyfriend were dry humping 3 weeks ago. He was wearing boxers and underwear and I'm wearing leggings and underwear with a pad because it is the last day of my period although i felt that my pad was sometimes not on the right position. And then he ejaculated on his boxers while he was grinding and the mark of the semen was visible on his boxers. I'm so worried if i am pregnant because right now i am bloated and sometimes i feel dizzy and i have an unexplained feeling on my stomach. And yesterday i noticed some bruises on my right leg. I'm also experiencing slight cramping on my lower abdomen. Is this pregnancy or just a sign of pms?