Okay my boyfriend and I had unprotected intercourse in the middle of July. We both realized it was stupid to do so we stopped about 4-5 minutes into it. It was my first time so being that I was very tight I don't think he even penetrated the whole way. He did not ejaculate at all but there could have possibly been pre-ejaculate, we're not sure. Although he said he hadn't ejaculated for days before then do the precum probably wouldn't have even had sperm in it to begin with (right?) I took Plan B about 40 hours after and got my period July 28th (right on time because my last period was June 28th). I had normal cramping and it was just a little less heavy than usual but it was still definitely a period not like just spotting because it was steady for 5 or 6 days. But now I'm just still a little worried about everything. I've been getting kinda sick lately, having lots of heavy discharge, been really bloated, yawning a lot/tired a lot, been kinda clumsy/losing my balance, and just have been having a lot pregnancy symptoms? Is it really possible to be pregnant even though he didn't ejaculate (may not have even pre-ejaculated), I took Plan B, and got my period?