Sperm on vagina

Soo.. this morning me and my boyfriend had sex. Didn't wear a condom cause we use the pull out menthod once in a blue moon.

He ejaculated on my butt and after he finished i yelled at him and he ran to grab a paper towle to help me clean off and im afraid that his cum leaked down to my vagina! I could feel it start to leak down!!

And today I checked my ovulation schedule. .. and im ovulating. Talk about bad timing...

What do you guys think? Has this ever happened to you?