I have a question someone help me?

Mariah
So I've been having unprotected sex this last month(I know, I'm stupid) BUT these last two times I've had sex within the last two weeks have been different. I feel weird. I had sex last night, and he had lots of precum even before his full erection. Should I be concerned? He pulled out before he actually came but I'm more concerned with all the pre cum? Can you get pregnant with precum?