Last week i had a clear not so thick discharge, now it's watery. my vag slightly hurts. what does it mean? i still haven't had my period

Discharge: First step is a pregnancy test. A yeast infection or bacterial vaginosis infection can cause your symptoms. So can a sexually transmitted infection. A yeast infection can be treated w/ otc meds. Treatment for BV needs a prescription. The best way to know what it is is with a good exam and looking at a sample of discharge under a microscope, along with std testing.