Hi im 16yrs old and about three or four weeks ago my boyfriend and i had sex but, we used a condem. Im pretty sure it didn't break,rip,or leak during or afterwards. but, lately i've been feeling a slight pain around my breasts and it's been about a wk since i missed my period. But, other than slight tender breasts i have no other symptoms unless you count gaining weight and bloating.
I would suggest going ahead and taking a home pregnancy test just to see if you are, cause the syptoms that you have mentioned are early signs of pregnancy...Hope this helps, if you have any other questions please let us know and we will be more then glad to answer them the best way we can.....Good Luck