Postpartum Vaginal Estrogen for Breastfeeding Patients

This study tests whether using a low-dose vaginal estrogen cream after childbirth can help breastfeeding mothers maintain their milk supply and improve vaginal health. Low estrogen during breastfeeding can cause vaginal dryness and discomfort, and there are concerns estrogen may reduce milk production — this study aims to find out. You may be eligible if: - You are 18 or older - You gave birth to a single baby at or after 37 weeks of pregnancy - You are planning to breastfeed or pump during the study - You successfully breastfed or pumped after a previous pregnancy - You are between 6 weeks and 6 months postpartum - You are sexually active - You can consent in English You may NOT be eligible if: - You delivered preterm (before 37 weeks) - You have had difficulty breastfeeding in the past - You experienced a severe perineal tear (3rd or 4th degree) - You have any contraindication to estrogen: history of breast cancer, blood clots (DVT/PE), stroke or heart attack, liver disease, protein C/S or antithrombin deficiency, or known thrombophilia Talk to your doctor to see if this trial is right for you.