Supplemented basal body temperature and regulation of conception

The "supplemented" basal body temperature method includes the self-observation of cervical mucus flow at ovulation. A rise in temperature must not be interpreted as ovulatory before the end of the cervical mucus flow. The method of self-observation described is practical for 90.5% of fertile women. The evaluation of the basal temperature graphs thus supplemented is easier and offers greater accuracy of prediction. With regard to conception control the "supplemented" basal body temperature methods effectiveness equals that of the ovulation inhibitors. The method also makes possible consideration of individual peculiarities of the preovulatory phase. As a result no method failure occurred despite intercourse during postmenstrual infertile days. If genuine menstruation occurs a sterile phase is assumed in the beginning of the cycle through the 6th day. Including consideration of patients errors this method results in a failure rate of .7 per hundred years of exposure.(AUTHORS MODIFIED)