Pregnancy

Ok so back story me (16) and my bf (16) had been dating for 9 months soo I had unprotected "sex" and I say that with the quotations because it was not all the way in me or even really at all and that was like 9 days ago but then fast forward three days, I had protected sex but the condom was a bit big for him but not terribly huge and the whole reason I'm saying this is because I know that you have a chance of getting pregnant with pre-cum and all that jazz , now I'm like one-two days late for my period and I know this could all be in my head but I just need some advice and please don't say to talk to my parent or family they will just make it worse