Orgasm?

I have been with my boyfriend for a little over a year and I lost my virginity to him. The first time we had sex I think I orgasmed, It felt crazy good and without knowing I squirted. I never even knew that was a thing for girls 🤷🏽‍♀️. The crazy thing is it has never happened again. Sometimes it feels like its going to happen but it also feels like i have to pee. Im scared that it is pee than I’d be mortified😱 Can anyone explain what feels like? Does it feel like you have to pee??? Help!