Could I be pregnant?

Hi ladies!

So last week maybe a bit over my partner and I had sex and he pilled out (I know this isn’t safe and not a method of contraception) however after he pulled out he finished all over my vagina (I believe it could’ve gone in and around the vulva area) my partner told me I was on top but not sure if that makes any difference? also, I was fertile and maybe 3 days away from ovulating.

My question is, can I fall pregnant and what are the chances? Thank you x

Also had unprotected sex the entire week (4-5 nights in a row using withdrawal through fertile window)