Early Pregnancy Discharge?

Jen
I was wondering if anyone could tell me if they experienced any changes in their discharge in the early stages of their pregnancy and how soon that occurred. I had unprotected anal sex with my boyfriend about 5 days ago and he came inside me. I thought I got all of his semen away from my vagina because I showered right after that but now I'm not so sure. Today I felt some cramping and I've been having lots of thick white discharge for the past few days and I read that those are early pregnancy signs, but I wasn't sure if it might just be coincidence since it is so soon after the sex