Hi, I have religiously tested for Lh surge from CD8 to CD17 ( have a 26 day cycle , with medications of Femara (D3-7) and Progesterone (D16-25)) but always got a faint line in the test region. Usually the line would be in a Dark to light shading , no uniform colour observed in theb test region unlike the control region, using urine on test strip as advised. Thus cant detect ovulation to time BD.Realised that I probably ovulated on CD11 (temp had dropped) after the temp increase on CD12. Cant understand when to time BD to conceive. Any advise please?