I am worried I am having luteal phase issues because I have not gotten pregnant yet and my luteal phase is between 8-10 days then I start my period... This suggests that my Progesterone is low. I have read several places where it says it must be longer 12-14 days for the egg to implant into your uterus. I have read about some natural therapies you can try and was wondering if anyone has had success with progesterone creams?