So I have been taking at least 2+ ovulation test a day!! Took one last night about 1130pm and it was negative! Then, took one this morning around 830am and it was postive, so excited! But I then took one around 2 and it was negative again, and the line is barely showing up now. I am kinda crazy, so have taken 3 other test and they have all been negative. Did my window really only last 5 hours!? So confused😭😭 and sad!!