I had my first time 2 days ago.. i have a brown discharge and very strong smell does this mean i may have an std??

While normal vaginal discharge is colorless& odorless, I doubt that you're experiencing STD symptoms within 2 days although it has been reported with chlamydia. . Brown discharge is usually breakdown products of old menstrual blood & other debris being shed from the uterus. Did you have a fairly recent period?. See your gynecologist for further information& advice.

Not necessarily. Best is to get checkrd by your Gyn. Good luck