以下是引用chixiaochi在2/22/2011 11:21:00 AM的发言：
我就是进来佩服一下你的毅力。

以下是引用xpppp在2/23/2011 10:22:00 AM的发言：

看过一本书，考古学家写的，原始社会的parenting方式是自然的喂奶到4岁，on demand feeding，一个女人一生大概4个孩子，自然的避孕（通过喂奶）。 叫our babies, ourselves, how biology and culture shape the way we parent.作者meredith small，cornell的教授。 干脆外面重开一贴算了。我写过一点读书笔记。

以下是引用jiexi在2/23/2011 10:00:00 AM的发言：

无语了，两岁还不断夜奶。。。。。。。。。。

 

推荐喂奶到两岁，没有推荐喂夜奶到两岁把

以下是引用blsunday在2/23/2011 1:42:00 PM的发言：

喂奶当然没有避孕套来的保险，但是大多数妇女在哺乳期间是不来月经和排卵的。

以下是引用blsunday在2/23/2011 1:54:00 PM的发言：

The World Health Organization and other groups of scientists have conducted and reviewed studies to determine if breastfeeding can effectively prevent pregnancy. Scientists have concluded that 98 percent of the times breastfeeding was a barrier to conception, if these three criteria were met:

• You must be fully or nearly fully breastfeeding. This means you breastfeed in the night as well, avoid formula supplements, and have regular and small intervals between feeding times.
• You have not resumed your menstrual periods. Any kind of vaginal bleeding after the 56th postpartum day is a warning that fertility has returned.
• Your infant must be younger than six months.