Fml got period yet again

Got my period yet again ughhh ? this is sooo frustrating. I have had a normal period all my life. We try on ALL my fertile days and on the days o specifically have an lh surge. The only think I am wondering about is that I know we can see when we get a surge BUT we dont know if we r going to ovulate. So maybe I will have an lh surge and maybe ovulate into the second week (technically outside the fertile window)? Also to be honest I get sexed out the fertile week and after that we definitely dont do it as much and after my fertile week I dont use opk's anymore or track much. Got preggo in july but lost it im wracking by brain what we did right that time but I wasnt using this app then I had a different app on my old phone. Ughhh this blows and is not fun ?