<![CDATA[Background: Unmet need for family planning remains a significant concern in Indonesia because it may limit the effectiveness of reproductive health programs. This condition occurs when women who wish to postpone or stop having children do not use contraception. Various factors may influence this situation, including maternal knowledge, spousal involvement, availability of healthcare services, counseling experiences, and concerns about contraceptive side effects. Identifying these determinants at the primary healthcare level is essential for improving the responsiveness of family planning services.Methods: A quantitative analytic study using a cross-sectional approach was conducted at Weda Primary Health Center, Central Halmahera Regency, from February to April 2026. Sixty respondents were recruited through purposive sampling. Data were obtained using a validated and reliable structured questionnaire. Univariate analysis was used to describe the study variables, followed by Chi-square testing to assess associations. Variables demonstrating relevant relationships were further examined using multiple logistic regression. Statistical significance was determined at α = 0.05.Results: Of the 60 participants, 38.3% experienced unmet need for family planning. Significant associations were identified for knowledge (p = 0.002), husband's support (p = 0.001), service accessibility (p = 0.008), counseling quality (p = 0.001), and perceptions of implant side effects (p = 0.003). Multivariate analysis showed that inadequate husband's support was the strongest contributing factor, with women lacking spousal support having 5.74 times higher odds of experiencing unmet need (95% CI: 2.01–16.43).Conclusion: Unmet need is influenced by interconnected individual, family, and service-related factors. Strengthening contraceptive education, enhancing counseling, involving husbands in reproductive decision-making, and improving service accessibility may help reduce unmet need and increase appropriate implant utilization.]]>
