std or just strep? (TMI PIC)

So here's the deal,
In the last 3 days I've had unprotected sex and given 2 blow jobs without condoms. 
All of a sudden I'm out here, my throat is swollen (the tonsils) and there's white on them! (Photo is TMI and attached) 
Should I be worried that it's an STD or just strep??? 
I'm real worried cause I'm only 17 and I really don't wanna have to deal w/ having had an STD already.....