Am I pregnant

Patient: So a week ago I gave my bf a blowjob and let him titty fuck me. He cummed on my boobs and himself and I believe a little on my hand. He gave me a shirt to wipe it off but I didn’t wash my hands because His mom came home and we’re only 17. Afterwards I walked home and that took me about 15-20 minutes. When I got home I talked with my friend for about 5-10 minutes before getting something to drink. After that I rushed to the bathroom and peed. After I wiped i realized I hadn’t washed my hands after he cummed. Like I said it’s been a week and I haven’t gotten my period. Last month I got it on the 7 but my period is always irregular. Today is the 6th and I’m a bit nervous. I just got out of school so my sleep pattern changed. Also I’ve been really stressed about this and school. Keep in mind I’ve never had sex and this was my first time doing anything sexually. Basically my question is, could I be pregnant?