They
increase the levels of estrogen in the body
because this hormone is not related to the keeping
of pregnancy, progesterone does. The hormones prevent a woman's ovary from
releasing an egg during her menstrual cycle. They upset the natural progress of
natural hormonal release and repress the
hormones FSH (Follicle Stimulating Hormone)
and LH (Luteinizing hormone) required for
ovulation.
