Help!

I’m so lost on what to do. I’m 16 and have been sexually active for a while now so this isn’t my first scare but this scare is definitely different.

So I have really irregular periods as it is and from the signs I’ve seen it seems I ovulated a month after my last period rather than a couple weeks later, again completely normal for me. But me and bf had unprotected sex the two nights I had the discharge and now I’m really worried I am pregnant. I’m 8 days late and all tests are showing up negative but if I am positive it could take three or so weeks to show bf the waiting it killing me! I’ve got a doc app Tuesday but I’m actually scared he’ll tell me something I don’t want to hear, like I’m infertile. I know that’s a complete flip on what I’ve been saying but the thing is I had a massive OD back in may, only had one period since, and the doctors did say it could majorly effect my internal organs because I shouldn’t have even lived on what I took...

ngl idk what I’m expecting to get in response to this I jsut really needed to share it with someone who might be able to offer the tiniest bit of support or help