Pregnancy Posibility?

So my fiance and I got pretty steamy in the hot tub last night. He put it inside me for a total of about 6 times but that was all since we both decided we didn’t want to go any further (we are really trying to wait for the wedding). Obviously he didn’t ejaculate, but I know there’s sperm in precum. I track my cycle, which is regular like clock work, and I don’t ovulate for another 5 days.

I really hate the idea of plan B since it’s hormonal and will most likely affect my cycle being regular. I don’t know what I should do. I’ve also heard that chlorine kills sperm and I know there was a lot of pool water shoved up inside there too.

Am I over thinking things?