What can a seventeen year old girl do when she finds out shes pregnant?

Im not pregnant, but im at risk of gettin since last friday my bfs condom broke while havin . i took my plan b pills already but there still might be a risk, i hope not. but if i really do get pregnant i wouldnt know what to do. I mean i dont wanna abort, i wanna keep it but, what would my friends, family people that know me, neighbors, what would they all think? Of both from my and my bfs side of family and ppl we know. the good thing is my bf says he'll be with me and help me get through all this he wont leave me he says he loves me and he'll be there for me, but what will we do? i really dont want to let my parents know theyll kill me. my dad or brotheres would already try to kill my bf, sice they dont like him much. om scared really, before when i used to think, if i ever got pregnant at an early age, i would run away, hopefully my bf comes w me since he cares and loves me, if not, man knowing how my parents are and what would happe, ill still do it myself. but pregnant, and runnin away? what will i do? where will i go? man..:( this really sucks, stupid condom had to break, i hope plan b works. please pray for me i dont wanna be pregnant?