18. Charting fertility signals can alert a woman to thyroid problems, vaginal infections, propensity to miscarriage, propensity to ovarian cysts, ideal times for surgery, etc. True or False.

A: True. Consistently erratic basal body temperatures (BBTs) can signal thyroid problems. Vaginal infections can be detected more easily when a woman can differentiate between them and normal cervical fluid. If the time between ovulation and menstruation is consistently less than eleven days, she may not have enough progesterone to sustain a pregnancy, and, hence, a propensity to miscarriage. If the woman has frequent "false peaks" wherein her cervical fluid builds up, but she doesn't ovulate, she may be at risk of ovarian cysts. Finally, "surgeries have been shown in some studies to have better outcomes if done during the fertile time. This may be due to the fact that blood sugar levels are higher and more stable during this time. (Blood sugar is lowest during the pre-menstrual infertile time.)"--from "Health Care Applications of Fertility Awareness" by Suzannah Doyle, WomenWise, Summer/91.

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