Hello I was playing basketball and when I stretched my leg to far something popped.and it hurts now .the position is like exactly the line going down between my thigh and pelvis area the inside

It could be dust on the coils that's burning off :D

Groin pull (muscle, fascia), femoral or inguinal or other kind of hernia, various irritated nerves from strained muscles - who knows. Hot bath soaks and heating pads and painkillers (OTC) for now. If it is the same in 4 or 5 days, see a doctor.