How are Progesteron and Fruchtbarkeit related?

Progesterone is a key hormone for female fertility. It is produced after ovulation by the corpus luteum and prepares the uterine lining for implantation of a fertilized egg. Low progesterone can cause cycle irregularities, recurrent miscarriages, or failure to conceive. During pregnancy, it is essential to maintain the uterine lining. Measuring progesterone levels is part of standard fertility workup. Direct-to-consumer (DTC) tests like MyBody-X's Hormon VitalCheck often measure progesterone only once, which is unreliable due to cyclic fluctuations. Reliable assessment requires multiple timed measurements and medical interpretation. The evidence linking progesterone to fertility is strong (human-strong), but the validity of home tests is questionable. Self-administration of progesterone without medical supervision carries risks.