Wondering how long is luteal phase? The luteal phase typically lasts 12 to 14 days and begins after ovulation. It’s the second half of the menstrual cycle and plays a vital role in preparing the body for pregnancy. Learning how long is luteal phase can help you track ovulation, manage PMS, and understand your hormonal health better. While a luteal phase shorter than 10 days may indicate issues like luteal phase defect, a longer phase could point to early pregnancy or delayed ovulation. Tracking your cycle with apps, ovulation kits, or temperature monitoring can give you clear insight into the exact length of your luteal phase.