Hello, me and my boyfriend engaged in multiple forms of outer course; genital touching, dry humping. I was in no underwear and he kept his on the whole time. He didn't ejaculate, to my knowledge. I got my period yesterday, it was SUPER heavy at first .. I bled through my clothes. Today, it is really light.. I think it's ending . I know implantation bleeding is similar to this, so could I be pregnant? I just don't understand what's happening to my body.