Maternal physiological changes in pregnancy range of effects during the pregnancy. Pregnant women experience numerous adjustments in their endocrine system that help support the developing fetus. The fetal-placental unit secretes steroid hormones and proteins that alter the function of various maternal endocrine glands. Sometimes, the changes in certain hormone levels and their effects on their target organs can lead to gestational diabetes and gestational hypertension. Levels of progesterone and estrogen rise continually throughout pregnancy, suppressing the hypothalamic axis and subsequently the menstrual cycle. The progesterone is first produced by the corpus luteum and then by the placenta in the second trimester. Women also experience increased
Half the Sky and when seen by patriarchal husbands and affected wives can change household dynamics. Another solution is sponsored by Always, Always provides feminine care products to school girls so that they do not miss school during their menstrual cycle, which often happens because they feel ashamed. The final and probably most empowering solution is an education. Allowing girls to attend school and go beyond elementary school can truly help women advance in developing countries. Carolyn See, a book critic from "The Washington Post", said in her review: "'Half the Sky' is a call to arms, a call for help, a call