preseed?

I know this is probably a stupid question but I've read that you have to pee after intercourse to not get a uti but if I have used preseed and after intercourse used the bathroom would it have all came out? I put the applicator up to 4 instead of 3 like other people used full of the lubricant. but I'm just wondering if using the bathroom after intercourse make the sperm come out? I know this is probably the dumbest question I've just read different everywhere about it so please no harsh comments