Limited evidence exists about women’s experiences of social support for reproductive decision‐making, particularly who women seek social support from during decision‐making. Using a concurrent mixed methods approach, this research explored who women aged 25–35 years living in Victoria, Australia, seek social support from during reproductive decision‐making. Women seek social support for reproductive decision‐making from multiple sources. However, through exploring women’s support seeking for reproductive decision‐making, rather than once a reproductive decision had been made, the study highlights the nuanced and contextual nature of support seeking for reproductive decision‐making demonstrating support seeking is influenced by: type of reproductive decision; women’s relationships with members of their social network; previous experiences of support seeking for reproductive decisions; expectations of the support they would receive; homophily; and temporality. This research provides important insight into who women seek support from for reproductive decision‐making. Understanding this will help inform future social and public health interventions.