71.   Dr. Chandra Williams, who treated Proust, said she told her she had not skipped her menstrual cycle and did not know she was pregnant.

72.   During menopause, the menstrual cycle stops and the production of estrogen drops dramatically.

73.   FDA spokeswoman Susan Cruzan warned women that switching brands midway through a menstrual cycle can increase the chance of pregnancy.

74.   Four months after the implant, she ovulated and had a normal menstrual cycle.

75.   However, some are experimenting with giving it only during the last two weeks of the menstrual cycle.

76.   Humair, who already had six children, had been given the fertility drug Clomid to help regulate her menstrual cycle.

77.   Humair said she had not sought fertility treatment but was given the fertility drug Clomid by her gynecologist after she complained of an irregular menstrual cycle.

78.   Humair, who was told she was expecting four babies, says the unplanned pregnancy occurred while she was taking a fertility drug to regulate her menstrual cycle.

79.   Instead, he recommended that doctors ask women to keep careful diaries of their symptoms for two menstrual cycles to learn how severe the PMS is.

80.   It also normalises the menstrual cycle, he said.