I'm about 2 days until ovulation. I'm using opks and it's nearly positive this morning.

Early this morning my husband and I had sex. We used a condom and he came inside it. After he came, he took the condom off and wiped himself off with a wet wipe and came back to finish me off. (He didn't pee) He didn't put on a second condom before going back inside me.

He didn't cum a second time, but I'm wondering if there could've still been sperm leftover? We're "Not trying, not preventing" so it's really not a big deal if I end up pregnant, but I'm wondering how high the chance actually is?