The Luteal Phase

The Luteal Phase is the time period beginning with the day after ovulation and running through the remainder of your menstrual cycle (ends the day before your next period). Typically, the duration of the luteal phase phase lasts between 10 and 16 days - and is generally consistent from cycle to cycle, averaging for most women at 14 days.
In the Trying to Conceive (TTC) Community, the luteal phase is also referred to as "DPO" - or days past ovulation. At the onset of the luteal phase, women's body temperature increases (Basal Body Temperature) in order to provide a fertile environment for the ovum.

What if I Have a Short Luteal Phase?

Typically, the luteal phase is around 10-16 days in length. A luteal phase that is fewer than 10 days may be too short for successful implantation to occur. Trying-to-conceive women who have a short luteal phase are often treated with progesterone therapy; however, there are natural remedies that have also been shown to be highly effective. Vitex Agnus Castus (one of the key ingredients in the fertility enhancing supplement, FertilAid for Women) supports progesterone production, and is often recommended as an herbal remedy for menstrual cycle imbalances, luteal phase defect, and PCOS.

Length of Luteal Phase for the Ovulation Calculator

Most women have a luteal phase that lasts 10-16 days - averaging at 14 days. If you do not know your luteal phase, you may safely use the 14 day average as the default value for the purposes of ovulation calculation.

Related Topics:

> Read More about the Luteal Phase and Menstrual Cycle!

Ovulation Prediction: Fertility Charting and Ovulation Tests

LH Fertility Charting Basal Body Temperature Ovulation Testing