I have 2 apps that said I was to start my period on 8/12 but glow adjusted it last week to 8/17. I stopped BC 3 months ago and had a 28 day cycle, then 25, then 23. Today would be day 28. I took a test this morning (negative) since I thought I was a couple days late but glow is saying I may have ovulated later than I thought. Just now I had some brown discharge. Could it be implantation or period? Although I can't remember it ever being this color... Holding out hope!!