Objective: To evaluate the effects of a nurse navigation program on breastfeeding self-efficacy and breastfeeding motivation in primiparous women. The research will be conducted as a randomized controlled trial with a pretest-posttest control group.

The study aims to evaluate the effect of a Nurse Navigation Program on breastfeeding self-efficacy perception and breastfeeding motivation in primiparous women. The study population will consist of women aged 18-35 years between the 28th and 32nd weeks of gestation who apply to Yıldızkent, Yenişehir, Adnan Menderes, and Şerif Efendi Family Health Centers between October 2025 and October 2026. Sample size was determined through a priori power analysis using G*Power 3.1.9.4, and repeated measures analysis of variance (ANOVA) was planned. To achieve a power of over 80% at a significance level of 0.05 with a medium effect size, 48 participants were required. Considering potential withdrawal or exclusion, the sample was increased to 100 participants (50 intervention, 50 control). Participants meeting inclusion criteria will be selected by simple random sampling, with allocation to intervention or control groups through randomization. The researcher cannot be blinded, but the statistician will be blinded to group assignment. Data from groups coded as A and B will be analyzed by an independent statistician. The study will follow CONSORT 2010 Flow Diagram guidelines.

Data Collection Data will be collected using the Personal Information Form, Prenatal Breastfeeding Self-Efficacy Scale, Prenatal Breastfeeding Motivation Assessment Checklist, Breastfeeding Self-Efficacy Scale-Short Form, and Primiparous Breastfeeding Motivation Scale. The intervention group will receive structured breastfeeding counseling via the Nurse Navigation Program from the prenatal period until six months postpartum. Scheduled follow-up visits will occur over approximately eight months. The control group will receive routine care only, with data collected in parallel.

Intervention Group

Participants will attend six sessions:

First Meeting: Study orientation, informed consent, baseline assessments including personal information, prenatal self-efficacy, and motivation.

Second Meeting: After 36 weeks, breastfeeding training using a newborn mannequin and educational booklet; post-training reassessment.

Third Meeting: Within seven days postpartum; reinforcement of breastfeeding education and administration of postnatal scales.

Fourth Meeting: End of postpartum 6th week; continued training and scale reassessment.

Fifth Meeting: Fourth postpartum month; conducted online or by phone, infant feeding status assessed.

Sixth Meeting: Sixth postpartum month; online or phone session to evaluate exclusive breastfeeding continuation versus complementary feeding initiation.

Control Group Participants will attend six assessment points corresponding to the intervention group but will receive routine care only. Assessments will be conducted face-to-face, via home visits, or online depending on participant preference.

Data Analysis Data will be coded and analyzed using SPSS version 25. Descriptive statistics will include frequency, percentage, mean, and standard deviation. Normality will be evaluated using skewness and kurtosis coefficients. Appropriate statistical tests will be applied based on data type, including Chi-square, independent samples t-test, Mann-Whitney U, ANOVA, Kruskal-Wallis, paired t-test, Wilcoxon, or Friedman tests. Significance level is p < 0.05. Internal consistency of scales will be assessed with Cronbach's alpha, and effect sizes calculated using Cohen's d or eta-squared for relevant comparisons. All ethical principles will be strictly observed throughout the study.

Inclusion Criteria:

• Being primiparous,
• Not having a health problem that would prevent breastfeeding,
• Being in the 28th-32nd weeks of pregnancy,
• Being between the ages of 18 and 35,
• Having at least a primary school degree,
• Residing in the city center of Erzurum,
• Not having a hearing or vision problem,
• Not having been diagnosed with a psychiatric illness,
• Being fluent in Turkish,
• Being able to use a telephone,
• Women who voluntarily agreed to participate in the study will be included in the sample.

Exclusion Criteria:

• Having given birth before 37 weeks of gestation,
• Having a health problem requiring the newborn to be in intensive care,
• Having a health problem/birth complication that would prevent breastfeeding during the study period,
• Withdrawal from the study at the woman's request,

being in the 28th to 32nd week of pregnancy

Statistics expert, Participant