I lost my other post-OPINIONS PLEASE!!! Doctor??

So I wanted to get people's opinions on if this is weird or normal and if I should see a doctor about it??
Sometimes after sex (at night) I'll wake up in the morning and not even feel like I have to pee but when I stand up I like can't hold it in? Not like I full out pee my pants but sometimes it like wets my undies, I know it's not just discharge it is pee but idk does this happen to anyone else? I'm only 20, so idk if it could be some weird incontinence thing?