Condom broke before ejaculation, Should I be worried?

Alright. So my boyfriend and I were having sex and the condom snapped. I am not on any other birth control yet. This was the second time that we were doing it tonight but it wasn't really going in at this point. He tried pushing repeatedly and at one point we heard the latex break as he was trying to enter. I don't know if anymore than possibly the head was inside me but i freaked. The condom we used the first time had spermicide lube but i did pee right after that. Also. I just ended my period yesterday. Should i be scared? My boyfriend and I are both really nervous wrecks.