Pulled out then put back in 4 mins later without cleaning

I’m wondering what are the odds of pregnancy if my man and I had sex he pulled out and came but then about 4 mins later he put it back in with all the cum still all over his part, I checked to see as well if I was close to ovulating to just make sure and it was a positive opk. I’m also 3 months postpartum. What are the chances of pregnancy.?