Hi and welcome to HCM.
YOu dont need to go to ER. Nothing will happen in short time. I dont think there is a serious damage to your reproductive system because you would have much intensive and persistent symptoms with fever
This stabbing pain
might be worryng but it can be sign of ovarian cyst
which isnt related to STD
. BUT i definitely recommend gyn examination. Ultrasounds and basic lab test including STD testing is at least what should be done. If your symptoms progress, experience pain , fever and excessive bleeding you should go to hospital.
Wish you good health.