Some peoples cycle just keeps chugging along like nothing has happened but others do have changes. I am like you and don't really count chem pgs to my angel babies, even my angel I lost at 7weeks I have difficulty counting it as real, perhaps because I never seen them on the screen so in my mind that are not real, probably just in denial lol.
My chem pg finished on cd19 and my next cycle was 25days long, normally I am about 30-31 days so it changes from person to person as most things tend to.
Sorry about droning on so long lol but I HTH.