Could I be pregnant?

I'm absolutely freaking out right now. I don't know if I'm being paranoid or reading into things, but I'm scared right now that I could be pregnant. This is really embarrassing and I'm sorry for giving details, but they're relevant to the situation.

I've never had actual sex (I'm younger by the way, a teenager) but about 9 days ago I gave someone a blowjob and they finished on my chest. I was only wearing underwear, if that makes any difference. After I washed most of it off and I can't remember whether or not if he washed his hands, but he says he thinks he remembers doing that, but he can't be 100% sure. After that he rubbed me over my underwear. I've read that if something like that happens and he has "sticky fingers", it's possible for it to find its way in me some how and I could end up pregnant. As I'm writing this all out, I feel like it sounds totally irrational that I could be pregnant, but it is completely possible, and other things make me wonder even more.

Technically speaking, I should get my period tomorrow (emphasis on should), so I haven't missed my period yet, but my periods are somewhat irregular, usually happening at the end of the month around this time, so if I don't get it tomorrow, I won't really know what to think. I've tried some methods that could "induce" an early period, like having a high intake of vitamin C and using heat, etc. Also, I'm not on birth control.

Because I'm obviously anxious and paranoid, I've been researching pregnancy and pms symptoms. So far, I've had tender breasts and today I noticed that you can see a lot of veins there, which is a symptom of pregnancy and not pms, but tender/swollen breasts are both symptoms of pms and pregnancy, so I don't really know. I've had some minimal cramping, I don't think that matters, and I was minimally nauseous for like 5 minutes on one day. I've been kinda emotional, which I usually am before my period.

So taking it all into account, I just want to know if anyone else logically thinks that I could be pregnant, or if I'm absolutely crazy. And I know I could just take a pregnancy test, but that isn't easy to get as a fifteen year old girl with no license and barely enough money for one in the first place. Sorry if this is weird or overly detailed, it's uncomfortable for me to share, especially because of my age. I just hope that I'm crazy and not insanely unlucky enough to get pregnant from the one and only sexual thing that's ever happened to me. Thank you to anyone who replies :)