BIRTH CONTROL? HELP PLEASE

Pluto • What's the use of feeling?
Is there any possible way I could get on birth control without my mom knowing? She's very, very strict and I would be in so much trouble if she figured out I've been having sex. My boyfriend's mom on the other hand knows about us, and doesn't mind as long as we use protection. The past two days though, we had sex without a condom. He would get close, and then pull out and finish using his hands. We both like this a lot better, but I don't have birth control and I know how dangerous this is, but in the moment I wasn't thinking. Could I go with his mom and get BC? Also could I be pregnant? My period is due in about 4-5 days. I wasn't ovulating. It had be around 4 days since I had been.