Natural Family Planning and Marital Chastity: The Effects of Periodic Abstinence on Marital Relationships.
Richard Jerome FehringMichael D ManhartPublished in: The Linacre quarterly (2020)
This study showed that ever-use of natural family planning (NFP) among ever-married women was associated with 58 percent lower odds of divorce than among women who never-used NFP. Ever-use of contraceptive methods was associated with two times the odds of divorce and four times for cohabitation compared to those women who never-used those methods. Use of periodic abstinence with NFP is the practice of marital chastity and is thought to strengthen the marital relationship.