freaking out 😱😳

okay so, I'm 15 years old and i lost my virginity to my boyfriend just under 2 weeks ago. we used a condom, but about halfway through we realised that it broke. we didn't know how long it had been broken for, but he hadn't came yet (phew). but I've just been so worried that I might be pregnant, I've never wanted my period to come sooner! talking to my mom about it would be horrible as we haven't ever been very close and she's highly against this type of stuff especially at my age. I was just wondering if it's possible to get pregnant this way even if he didn't cum inside after realising the condom broke? or am I being irrational? I just need some advice and/or reassuring 😓