I'm scared

So, on Halloween I had unprotected sex. He pulled out but I was worried and so was he. I wasn't fertile but still very nervous because I had been off my birth control for almost 3 days because I didn't have any and then started it again that night. I took two test maybe about 5-3 days ago and they were both negative. I was supposed to start my period starting like 3 days ago. I have all the symptoms of my period except the bleedind, I am very very dizzy. Normally on the pill my period is about maybe 3-4 days late but I'm very scared. Any recommendations? I don't have anymore money and I can't ask my mom to get me a pregnancy test.