本书从生男生女奥秘的破解、生育最佳时机的把握、如何生育健康聪明的孩子等方面提供了关于生育的近二百个对策。
With The Art of Natural Family Planning Postpartum Student Guide you will: - Learn to recognize the hormonal changes in the transition from pregnancy back to normal fertility cycles - Realize the benefits of exclusive breastfeeding for the ...
The Billings Method of Natural Family Planning: Controlling Fertility Without Drugs Or Devices
The Couple to Couple League's Art of Natural Family Planning Student Guide explains the Sympto-Thermal Method of Natural Family Planning.
Hazel Chesterman-Phillips developed her method of sex determination following her own experience in which she desired and gave birth to a boy after having two daughters.