Key points are not available for this paper at this time.
Carolyn Pape Cowan, Philip A. Cowan, Interventions to Ease the Transition to Parenthood: Why They Are Needed and What They Can Do, Family Relations, Vol. 44, No. 4, Helping Contemporary Families (Oct., 1995), pp. 412-423
Cowan et al. (Sun,) studied this question.