Was it his cum

I had ssx and my boyfriend came inside me, that next morning I got up, and I felt an unusual discharge, when I stuck my finger down then it was thick, yellow, it didn’t have a smell or taste (yes I licked it don’t judge me lol) my question was that his cum or mine

My next question is I used every app and it has said that my ovulation was on the second to last day of ovulation, us there a possibility I’m pregnant even though my discharge now is kinda thin and creamy