[NSFW] Guys please protect yourself when you have s*x.

So last night I (19M) was with a girl (21F) and we had sex with protection, in the morning we had sex without protection because she asked for it even tho I still had condom left, it was a big mistake because I unfortunately let my white stuff go in her, and she doesn't take any contraceptive pills, so we are not dumb (yes we are) and I did go with her to buy the after-morning pill, but man, I still don't know if she had any STI even tho she told me the opposite, that suck.