Thinking About Testing

So My Last Period Was May 22, And Lasted Till The 25..My Period Comes Every 30 Days And Stays For 4 Days ..Well I Was Supposed To Start Yesterday But I Didn't Even Get A Drop Of Spotting Or Any Sign Of Starting Officially 1 Day Late Not Freaking Out To Much Till I Looked On My Calendar On Here And Found Out That Me And My Boyfriend Had Sex 2 Times On A Day I Was "High For pregnancy" So Now It Has Me Thinking..I'm Going To Wait Till My "Would Have Been" Period Is Over And See If I Start At All During It Or Not At All If Not I'll Test For Sure, I'll Be Sure To Update Day Before Or On The 27th