I had my implenon implact removed about 4 months ago, so that my husand and I can conceived. I already have 4 beautiful children. I usually conceive right away, so suprisingly I haven't had luck yet. But my menstrual cycles have only been 21 day cycles, whereas they used to be 28 day cycles. When on implenon my periods when away completely, which was great. So although I've ready it's still possible to conceive on a 21 day cycle, I wonder if that is why I've had problems. However, this month I've been cramping all week and was expecting my period 3 days ago on the 21 day cycle. I've taken two pregnancy tests which were both negative, I have no doubt I'm about to begin my period. I suspect that my body is starting to convert back to a 28 day cycle. Maybe that means I'll soon be able to conceive Has anyone else had an experience like this? With irregular cycle and getting pregnant after implenon implant?