Waiting to see..

So I had unprotected sex the day before ovulation based on the app...2 days later I had frequent urination, I peed like 16 times in 8 hours. I'm 6 days out and my period is expected to arrive on or around the 3rd. I have been off bc since june, had breakthrough bleeding after stopping pills, no period in july and a period the 1st week in Aug. What are the odds? Im 34 and my son is 7. I had an ectopic before him from twins, so I have one fallopian tube & Haven't been preggo since him and had no symptoms from being preggo with my son. Could I be?? or am I paranoid?