If it smelled or stained like urine after it dried, is was likely peeing. If not, it is more likely female gushing. This is a clear and clean fluid that fills your bladder during arousal. During an orgasm or when there is pressure on your blader, it can gush out. It is what cause that feeling like you have to pee when you get close to orgasm.
It sounds like you got an UTI. Drink lots of water and cranberry juice.If it does not get better, see your doctor. It is treated with an antibiotic.To lesssen your chances of getting an UTI, make sure everything touching your vulva during sex is clean, an pee as soon after sex as possible to flush out bacteria that might have found its way into your urethra.
Best of luck!