Luteal Phase Defect (LPD) - is it a real concern or just a clinical ghost? 🤔 LPD is characterized by a short post-ovulation phase or insufficient progesterone production, raising questions about its role in infertility and recurrent pregnancy loss. Yet, current research indicates that many women with normal fertility also experience short luteal phases. Diagnosing LPD is tricky! Traditional methods like progesterone testing and endometrial biopsies have their limitations, often leading to confu