I think the fertile window of six days is too long. When I focused intercourse on the last 3 days of my fertile window I concieved. My actual ovulation day was the last day of my fertile window. Even according to glow and my six day fertile window, ovulation for me always occurred on my last fertile day on my chart. Narrow down your Fertile window and it will help you to concieve sooner. Hope this helps someone make their baby dreams come true.♧♧♧