Pregnancy scare 😨😨

Ok so me and my bf had sex a couple of weeks ago and im expecting my period this week im seeing a tiny bit of blood on the tissue then i dont see anything more and im really scared. I told my bf whats goin on and he acting like a dickhead. He not helping me and he talking about he dont wanna use condoms now he dont wanna have sex with me anymore. Im just really stressed now. What should i do?