It is not uncommon for ultrasounds to show a slightly different gestational age than expected. Factors such as the accuracy of the ultrasound machine, variations in fetal growth rates, and individual differences can contribute to this discrepancy. While it may cause some concern, an overgrowth of the baby is not always a cause for worry. Your healthcare provider will closely monitor your pregnancy and take necessary steps if any complications arise. It's important to discuss any concerns with your doctor or midwife to ensure the health and well-being of both you and your baby.