i had intercourse on Wednesday night, Friday I noticed discharge with a fishy odor. i have a history of getting BV after intercourse so of course thats what i thought it was. Went to the doctor on Monday and he tested me for stds and BV. all were negative (not sure if he tested for a yeast infection, never had one before tho). today the discharge has been lighter than the previous days and the smell has went away (actually went away after 2 days). i checked my dirty clothes and prior to having sex I had No discharge. Also on Saturday I went to urgent care and found out I have a UTI. i will also mention that I've been on birth control for 3 months, but I don't think thats causing the discharge. Any guesses or ideas ?