Will I get pregnant or am I good?

My husband and i were fooling around in non-chlorinated water (stupid, I know 😅). Well, one thing led to the other and he ended up ejaculating in the water. The cum rose to the top of the water and I moved away as soon as I saw, but will I get pregnant/ should I take a morning after pill?

Note: There was no penetration and I had bathing suit bottoms on, and moved more than two feet away when I noticed.

😅😱🤥