“Just the tip” need help ASAP

I really need help with this!!!

Nearly over a month ago, it was my first time with this new guy. And i’ve never done intense stuff with someone and this was the first time I got fingered. The guy was kind of an asshole and I had a few drinks before hand to ease myself into it.

I remember that he had asked me to put the tip in, and I said no, but he later told me that the tip was in. I started freaking out and he said that it wasn’t in. He didn’t cum inside me but I think some pre cum obviously entered. My period is 12 days late so.. CAN I GET PREGNANT??? I’m 18 and my parents are muslim, i’de literally die. How do I know if I am? And how the fuck can I prevent this??

Notes: the guys said I was lying when I told him I was a virgin(never been fingered) but honest!! I never have, and a when I got home there was blood all over my underwear, and weird color discharge.

Any knowledge on this?