Introduction Weight gain during pregnancy is a natural and necessary part of supporting a growing baby and preparing the mother’s body for childbirth and breastfeeding. However, understanding how much weight to gain—and when—is important for the health of both mother and baby. Gaining too little can increase risks such as low birth weight and premature delivery, while gaining too much may lead to gestational diabetes, high blood pressure, and complications during delivery. This article provides evidence-based guidelines on healthy weight gain during pregnancy, broken down by body mass index (BMI), trimester, and offers practical tips on managing weight gain safely.…