I need someone's opinion please

So I had unprotected sex on one of my fertile days with my boyfriend. He did not cum inside me, we did the pull out method. Well, today is the day my period should have started but it has not started yet. My cycle is usually 34- 36 days and today would have been day 34. I was just thinking maybe I should wait two more days before testing but I wanted to see what you ladies thought. 
Thank you for your help. 
So thank you all for the advice I took the test on the 27th which would have been on my 34 day cycle but it was negative that was exactly 12 days after we had sex... Now I still haven't got my period and it's the 38 day of my cycle do you ladies think I should take another one??