I have endometriosis... My periods have always been messed up, but the past few months they have been right on time, well I logged my last period as Aug 22nd....me and my fiance have been praying for a miracle baby after 2 miscarriages and a still born, I had intercourse on September 11th with this app it says I had 2.9% chance of pregnancy, can someone please give me some insite on what is some good timing or anything that could help me conceive.....