waiting for an STD test?

Bella • 21 yr old shameless feminist & lover of the earth ✌🏼️
Is it a bad idea to wait 3 (a little less) months after unprotected sex to get tested ? I'm having a few symptoms that may be just normal .. A little discharge and some cramps (feels like period but I had mine last week). I am living in Italy so I cannot easily get tested until August. 
I'm talking to my gyno later about this but I just wanna hear what you guys have to say. I don't want to risk becoming infertile or having some sort of bad illness from this because I waited too long or something.