leaking and pains

i am 28 weeks pregnant today.

when i woke up yesterday, there was fluid running down both my legs. throughout the day, i changed 3 times bc every time id sit down and stand back up, it felt like i wet my pants. i didnt feel it as it was happening, but noticed it obviously when i walked. it even leaked through my pants onto my friends bed. i thought it was just pee from her laying on my bladder, but now im not so sure. today - i havent leaked much that ive noticed, but i have had some period like cramps in my lower abdominal area. also feels like my vagina is literately being pounded on every so often with a sharp like pain. is this normal? or should i check into it.. im a FTM so i really have no idea whats normal and what isnt. some people say i could be leaking amniotic fluid and some say it could be pee. any ideas? called my OB and a nurse is supposed to be returning my call, but im just overthinking too much rn.

UPDATE: OB said to go, they said it wasnt pee or amniotic fluid and i dont have UTI. ive been discharged now so im headed home! she said it might just be bc of hormones and it being wet down there i guess. she said i do have a lil bit of something that started with k but that just means i need to drink more fluids! thank you for the concerns 😊