a week ago today, my bf and i had sex. he didnt go all the way in. we didnt have any protection because we werent expecting it to happen. but he didnt ejaculate inside me at all. and when he came in, i didnt bleed and it didnt really hurt. i've never had sex before, so that was strange. i thought maybe b/c he didnt go all the way in he didnt break my hymen. but then i remembered getting kneed one time really hard in the crotch and bleeding some after that... i dont know. im just worried i could be pregnant because we didnt have protection. even though he didnt cum inside me. im supposed to get my period in a few days, but ive been really tired lately (which could be for a number of reasons but i dont know.)