I’m crying from fear

I’m so scared. So today my period was supposed to start but it kinda hasn’t. I have only had SUPER light bleeding. Like mabey half a tablespoon. I have my bf a handjob a little over 3 weeks ago and after he came we cleaned up and stopped for 10 minutes before he went to the bathroom and washed his hands and then fingered me. A few days after I started birth control and when we did stuff it was a week before my fertile week ( I also started taking birth control before my fertile week began). Is it possible that I’m pregnant? I really need advice cause I can’t go to my mom.