So i decided to try a different brand of ovulation tests this month. The femometer tests ive been using for a while are 20miu/ml and the new Afac tests are 25 miu/ml. Testing both from the same urine sample im getting super dark (darn near positive)lines on the Afac tests and just barely any line on the Femometer ones. Im kind of confused. I realize they are different sensitivitys but should the lines be so different? Or could they be the same but it just looks differnt beacuse of the dye?