Is it true that if your baby has a big head, a natural vaginal delivery is not possible?

Baby's head can mold and overlap, reducing the head circumference and your vagina wall is expandable. Thanks to the hormone relaxin to prepare your body for labour and birth. It requires preparation in both mind and body for labour. Our bodies are capable to birth our babies in any size. Most babies are within the normal size of 2.5kg to 4kg. Above 5kg is consider big but not impossible to birth such a big baby vaginally as well. When you are relatively relaxed, baby is in an optimal position, you are free to move about during labour, you should have no issue in a vaginal birth. Have faith in yourself. You can do it.