Am I pregnant?

I have been told thick white cm past ovulation is a sign of pregnancy, I am 4DPO. I know it’s kinda early but this has never happened to me after ovulation. The only time I have creamy cm is the first half of ovulation. Could I be pregnant? I had sex before and on Ovulation.

TMI:

I had sex with my boyfriend a couple days and the first 10 seconds of us having sex his penis was covered in it. That has never happened ever.