HELP ME! PLZZZ

Ok so me and my boyfriend had sex yesterday (Sunday) and before we even had sex I gave him hand job and he came a lot. Then he wiped him self off and then gave me oral. After that we had sex, without condom. He pulled out and then waited a little and came on my leg and then wiped off and went back in. Then when we went back in he came out to come and it was little bit of cum. He always pulls out and then we wait 20 seconds and he cums. I watch him cum outside of me, later that night I started my birth control using Sunday start. Is there any way I'm pregnant, or more likely to be pregnant than not? Please any advice. I KNOW I SHOULD BE USING CONDOM, I made mistake.