I cannot believe the difference 4 hours makes. The top test taken at 3:40 and the bottom at 7:40. Had I not tested again I likely would not have gotten a clear positive. I guess this is how easy it is to miss your surge. Side note. I asked my husband to look at the top test he looked and put it down said he would be back in 5 minutes. He went around the corner to cvs and got a box of clear blue digital ovulation tests and told me not to stress over pink lines. I love him so much ❤️