Efficacy of the new TwoDay Method of family planning.

  title={Efficacy of the new TwoDay Method of family planning.},
  author={Marcos Ar{\'e}valo and Victoria Jennings and Minna Nikula and Irit Sinai},
  journal={Fertility and sterility},
  volume={82 4},
OBJECTIVE To test the efficacy of the TwoDay Method, a new fertility awareness-based method of family planning that provides women with simple instructions to identify the days each cycle when they are most likely to become pregnant. Users avoid unprotected intercourse on days when cervical secretions are present on that day or on the day before, to prevent pregnancy. DESIGN Prospective, nonrandomized, multicenter study. SETTING Five culturally diverse sites in Guatemala, Peru, and the… CONTINUE READING


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The art of natural family planning

J. F. Kippley, S. K. Kippley
ed. Cincinnati, Ohio: Couple to Couple League International, • 1996
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