what levels change when your pregnant
Levels of progesterone do increase naturally in pregnancy as mentioned above. High levels of progesterone are associated with the condition congenital adrenal hyperplasia. However, the high progesterone levels are a consequence of and not a cause of this condition. Also, high levels of progesterone are associated with an increased risk for developing breast cancer. Progesterone, either alone or in combination with oestrogen, is taken by women as an oral contraceptive (âthe pillâ). âThe pillâ works by preventing ovulation, making it nearly 100% effective in preventing pregnancy.