Luteal phase abnormalities in early menstrual cycles after pregnancy have been shown to cause confusion in the practice of natural family planning (NFP) for some patients and to restrict severely the number of late infertile days available to others. The cause of the abnormalities is uncertain but appears to be related to the nursing status of the patient.
Indirect evidence of the occurrence of ovulation, which is generally accepted, is an increase in plasma or serum progesterone. Pelvic ultrasonography can estimate the probable time of ovulation within...
Hatherley LI, 1985Clinical Reproduction and Fertility
The use-effectiveness of natural methods of family planning in lactation is evaluated by comparing the incidence of unplanned pregnancies in a group of nursing mothers practising these methods with th...
Hatherley LI, 1985Clinical reproduction and fertility
A prospective six-year study (1975-1980) of 273 patients, monitored in the use of natural family planning (NFP), has shown that those with previously irregular menstrual cycles are disadvantaged in th...
A preliminary study of 'screened' women with two consecutive miscarriages revealed an incidence of abortion in 47.4% in a subsequent pregnancy whilst hCG therapy in a similar group of women where bioc...