Last Wednesday 05/18, I Received Oral From A Lady For

Last Wednesday 05/18, I received oral from a lady for approximately 2-5 minutes without a condom, I felt uncomfortable so I decided to put a condom. After another minute I was convinced it was a bad idea so I had her stop and I left. Before I left I cleaned the penis with soap. Before the condom she only gave oral on half way down the shaft and after the condom was put on she went a little further. It has been about 5 days since and I dont feel like I have any symptoms. No burning during urination, genital area does not hurt, no visible symptoms around the shaft of the penis. However, I did notice what look like pimples around my testicles, can I still get STDs around them testicle region despite no contact other than the shaft area? also I spoke to a clinic that said that I needed to wait 3 weeks until I get tested. Is there a certain amount of days that I would be in the clear? I've been checking myself thoroughly for the past 5 days and I've growing obsessively concerned. I don't want to over react especially with the pimples that I noticed, but I also feel the pimples come and go.