Estrogen: Crucial for the development of female secondary sexual characteristics and reproductive function. Progesterone: Essential for regulating the menstrual cycle and maintaining pregnancy. FSH: Stimulates the growth of ovarian follicles before the release of an egg. LH: Triggers ovulation and the formation of the corpus luteum. Testosterone: Though primarily a male hormone, it is also present in females and affects libido and energy levels. Thyroid hormones: Regulate metabolism and can impact menstrual cycles and fertility.