Progesterone
The primary progestogen, rising after ovulation to prepare and maintain the uterine lining for pregnancy. It balances estrogen, supports early gestation, and has calming, sleep-promoting effects.
Too little may be associated with
Short luteal phase, spotting, difficulty maintaining early pregnancy, and estrogen-dominant symptoms; falling levels trigger menstruation.
Too much may be associated with
Drowsiness, bloating, and low mood (as in the luteal phase or from supplementation).
Informational only — not medical advice.
Stimuli that influence it
None linked yet.
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