hi there, i am a 21 year old female, and have noticed a vaginal discharge recently. it is sometimes quite thick and white, other times it is clear and more like water. it sometimes has quite a strong smell. I have had an sti test which came back clean. I was wondering if it could be thrush, although it doesnt smell like bread. I am also currently taking a contraceptive pill. me and my boyfriend are both clean of sti's