So why not get past the most challenging phase of parenting during graduate school, when you are young and energetic and the only responsibility is to get the degree? (sciencemag.org)
I can not imagine how I would have survived this most challenging phase of my life without this breast pump. (electricbreastpumpwomen.com)
My partner and I have been quite successful implementing authoritative parenting with our daughter till she turned three and a half and went through a very challenging phase. (mommystroller.com)