This study examined mothers' and fathers' parenting challenges and strategies/resources used when parenting toddlers. Through a qualitative interview protocol, implemented with mothers and fathers separately at a university laboratory, this study found that both fathers and mothers appeared to be transitioning from traditional gender roles towards co-parenting practices. Thirty-eight, mostly Caucasian and middle-class, mothers and fathers of toddlers reported many similarities in parenting challenges, coping strategies, and resource use. Common sources of parenting stress for both mothers and fathers were developmental and behavioural concerns about their toddler and time management concerns in balancing between various responsibilities. Some fathers reported difficulty and less perceived competence in taking care of children during daily routines than did mothers. Mothers used a greater variety of emotion regulation strategies than fathers did. These strategies, which included support-seeking from more diverse sources (e.g. families, friends, books), were used to reduce their stress. Implications for the content and delivery methods of co-parenting and parenting education programmes are discussed. (Contains 1 table.)