I'm 15 years old. I had unprotected sex with my boyfriend on July 10th, 2013. I was a virgin previous to the sex, and he did not penetrate deep enough to tear my hymen and it was not torn previously to the encounter (through horseback riding, vigorous bike riding, etc.) as far as I'm aware of. He did not ejaculate in or on my vagina. I was supposed to get my period on July 13th, 2013. I've heard that females are most fertile right before their period, but I wasn't thinking and I regret that now. I haven't gotten my period since and I recently went to the doctors for a checkup. My doctor did not know that I'm involved sexually with my boyfriend but I am 100% healthy and they found nothing wrong with me. I'm curious if the would be able to tell if you're pregnant through a checkup or not if you didn't tell them you might be. How could this pregnancy affect me because I am so small and young? (5'0" and 95.4 lbs) I have so many more questions. Thank you.