What should I do?

My period is in THREE DAYS! My bf took off the condom so we sorta had raw sex but he didn’t come. He did not have an orgasm at all. All he did was a few seconds stroke then pulled out then that was it Cos I guess he was late for work and he couldn’t focused. While he was in the bathroom, I saw his condom had some white stuff! I touched it I’m assuming that it is precum!

Is it going to make me pregnant and is it going to delay my period? 😩

I don’t think I am ready for sex at all. Ughh