Can someone explain this? I started testing for ovulation on April 19 and kept getting negative. Glow kept on pushing my fertile window back every time I logged that I'd not had LH surge however when I logged my last negative yesterday, it just got rid of my window and is now only showing my next period and my window after that?! Hope this makes sense. What does this mean? I've still not had a positive ovulation test for my current cycle. Thanks