The purpose of this study was to look at the factors related to the first-time mother's coping with child care when her child is 3 months old. This study is part of an extensive longitudinal project in which the development of mothering skills of first-time mothers was followed up for 8 months postpartum. The data were collected with a questionnaire between March and September 1995, in a sample of 271 first-time mothers. The mothers filled in the questionnaire when their babies were 3 months old. Coping with child care was assessed using Spearman correlation coefficient and stepwise regression analysis. Positive correlation was found between the mother's competence, attachment to the child, health, depression, relationship with the spouse, sense of isolation and role restriction, and the mother's coping with child care. The strongest correlation existed between the mother's competence and her coping. Positive correlation was also found between the child's mood, demandingness and acceptability, and the mother's coping with child care, with the child's demandingness having the strongest correlation. Positive correlation was again found between social support–the average functional support the mother received from her own social network, plus affect, affirmation, and aid from the public health nurses–and the mother's coping with child care. The predictors included in the multivariate method were the mother's competence, health, depression, and attachment to her child; the child's mood and ease or difficulty of care; and the affect and affirmation from the public health nurse. The results show that the first-time mother's coping with child care, when the child is 3 months old, is affected by the characteristics of both mother and child, as well as by the social support received from their social network and from the public health nurses at the child welfare clinic.