I need advice on what to do next

Hey guys.

I (19F) have been with my bf (22M) for almost two months now. Things have been great. We occasionally would have intercourse. Last time we did it was four days ago (one day before I get my period). Usually when I have intercourse the day before my period starts, it tends to delay it 2-3 days. As I’m making this reddit post, it’s been three days since I was supposed to start it. I’ve had some random cramps, which usually is a sign i’m about to start it, yet I still haven’t gotten it. Last night I did take a test that showed it was negative.

Guys I have anxiety and I tend to overthink a lot. I’m not sure what to do from here. I was thinking of going to my bf’s place after work today to take another test with him.

Also this is important to mention. I live with my mom. She allows me to have a bf and to go over to his house, but she rebukes the idea of intercourse and anything that deals with that. I can’t go to my mom for advice because it’ll just make the whole situation way worse. I can’t go to my dad (they’re divorced and he lives somewhere else) because he doesn’t like the idea of me dating because he would prefer if I just focused on school. He doesn’t know my bf yet but I do plan on introducing them soon. I’m scared to go to the doctor because I’m under my dad’s insurance and they usually notify him when i visit the office and I’m scared he would find out.

But I would greatly appreciate if anyone can give me advice on what to do next. I seriously doubt I’m pregnant but my anxiety is making me think the worse and I just need any woman reading this to help me out.

Thank you guys.