How to calculate my cycle

So my husband and I had unprotected sex on August 1 twice! My period started July 15 or 16. I'm trying to see if I would have been ovulating and when my next period is coming. I'm a very impatient person this calendar said I am suppose to have my period tomorrow but I am not cramping or spotting. I've been in like a pms type of mood today too. But tomorrow doesn't sound right for my period to start.