Hi Trapped-

First things first, if it has been less than 5 days you need to try and re-visit the morning-after pill scenario.  Those work for up to 120 hours, so it may not be too late. Obviously you can’t force that, but you should make every possible attempt to get that.

Second, stop having intercourse with this person immediately.  This may have been a fluke but it might have also been an attempt to trap you in a relationship.  Worse, she could have cheated on you and this could be a veiled attempt to cast a shadow on who the father is, or make you take ownership in case she is pregnant with someone else child.

Of course it is possible that the condom broke on its own, but condoms tend to completely break, not just have a small hole with a leak when that happens. Given what you have told me, you should err on the side of caution here.  Try again for the morning after pill if possible.  I would even just go and buy one and bring it to her.  Her apathy towards that seems more like she is being nonchalant than having any opposition to taking one.  If she still says no, I would make her explain why exactly. You need to get as much information as you can now.

If she still says no you need to make a judgement call on whether you trust her and her explanation why. You might even want to ask her point blank if she tampered with the condom.  Honestly, if she does not turn out to be pregnant, I would break up with her.  Her apathy so far seems sketchy at best, assuming she is not on birth control.  Play it safe, you are too young to be this committed anyway. If she does turn out pregnant and wants to keep the baby, be sure to verify paternity of the child before your name goes on that birth certificate.

Sincerely,