3d image of progestin skeletal formula

progestin progesterone menstrual cycle pregnancy birth control progestagen gestagen gestogen sex hormone female synthetic gynecological conditions irregularities progesterone receptor agonist hormone therapy disorders pregnancy support sex-hormone suppression sexual dysfunction androgenic antiandrogenic estrogenic glucocorticoid antimineralocorticoid 3d contraception hormonal oral contraceptives mother gynecology obstetrics woman motherhood birth fertility fertility medicine reproduction reproductive menopausal hormonal replacement