Hi ladies...here is my story I am 40 and ttc  for 2 years so heard about Glow on the news so figured I would try it...so last month 12/8/13 I input my last 3 cycles and started bbt tracking...AF arrived on 12/9/13 as indicated on the app. We BD two days prior to the fertile timeline. AF was supposed to arrive 1/7/14 had a small amount of spotting 12/31/13 then nothing....took hpt today and BFP!!! So I truly believe this app helped tremendously not sure how they figure it out but it does....Baby Dust to all :)