Effect of contraceptive pills on women in child bearing age and the number of their human offsprings.

A mathematical analysis model of a population of women of child bearing age is used to show the effect of contraceptive pill use on the number of expected live births. Two models were studied: 1) where the same number of women are taking the pill each month, and 2) where the same women are taking the pill monthly. It is concluded that if the population is structured around the second model, no month-by-month follow-up of the patients by a family planning program would be necessary to evaluate its success in fertility control.