My husband and I have been TTC for about half a year now. My cycles are usually 26 days and I get my menstral regularly (and the flow lasts a whole week). I've been taking ovulation tests all week and it's not detecting anything. All other fertility signs (like my CM and Rising BBT) tell me it's approaching. This app keeps changing my ovulation date and pushing it back. Does anyone else here have a longer phase between menstral and ovulation and a shorter phase between ovulation and their next menstral? I'm getting concerned.