Plan B

Kayla

So im thinking that I ovulated a couple days ago, my husband and I had sex in the shower around 3pm today, he pulled out way before finishing but we were afraid some cum may have made its way to my vagina so we got the plan b as a precaution because we are not ready for another child yet. Well, I was doing some research and found that it will not work if you've already ovulated and im flipping out. Can anyone give me some insight?