So me and my boyfriend had sex yesterday. (3 days after my period, 5 days until ovulation) He pulled out and finished himself off in a rag without cumming near my vagina. A little while later, I started by sucking him off and then i got on top and he put it back in. This only lasted less than a minute or so. He didn’t cum or anything in me. I know precum can potentially have sperm in it left over from before. Do I need a plan B. (Please no rude comments as I know the risk and I’m not allowed to be on birth control, and I know condoms are necessary for any penis to vagina contact but we didn’t have any at the time)