Pre-pregnancy progesterone is normal post-pregnancy low progesterone may be caused by luteal insufficiency or abnormal embryonic development.
Progesterone is secreted by the corpus luteum in the early stages of a woman’s pregnancy, and a portion of the progesterone may be secreted by placental syncytial trophoblasts after the formation of the placenta. Since the secretion of progesterone is pulsatile, it may sometimes show a transient physiological decline, which basically does not affect the growth and development of the embryo, without too much tension.
In addition, low progesterone after pregnancy may be caused by endocrine abnormality and insufficient function of the corpus luteum in pregnancy; in addition, ectopic pregnancy and abnormal development of the fetus may also appear to have a persistent decrease in progesterone.
In conclusion, it is recommended to consult a professional doctor and receive standardized diagnosis and treatment.