My husband and I have been ttc for 3 cycles now. Each time I have felt early pregnancy symproms, such as lower abdominal cramping, sensative breasts and sometimes even lower back pain. But each time, I have gotten my period as expected. I'm trying to figure out why I would have these symptoms and not show up pregnant. I don't believe it's pre menstral b/c normally I don't start cramping until my preiod starts.