The luteal phase of your cycle is the time from ovulation until your menstrual period begins. The normal length of the luteal phase is 14 days, in a 28 day cycle. Women with a luteal phase defect have a much shorter phase, often ten days or less. If you manage to conceive, the much wanted pregnancy ends in miscarriage. Low progesterone level is thought to be the cause of a luteal phase defect. There are a few causes of low progesterone. A low level of follicle stimulating hormone (FSH) can result in poor follicle development. This causes the body to … Continue reading →