Feeling worried because last month I ovulated on CD 8 (very early). My <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> was obviously completely off. This month for whatever reason I decided to listen to my <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a> and didn't start taking OPK's until what was supposed to be the first day my fertile window and now I am on, whats supposed to be, the fourth Day of my fertile window and I'm still getting negative OPK's in the lines seem to be getting lighter or staying the same so I think that I ovulated really early again this month and missed my chance and I'm SO disappointed. Also my husband leaves on Friday for the rest of the month for work so even if I ovulate late, he will be gone :(. TTC IS NOT FUN.