Abdominal distention from gas and bloating and the growing uterus feel different; the uterus is firmer. By the end of 9 months, the uterus has grown enough to crowd the stomach and the intestines, often causing heartburn and gas and making it difficult to eat a lot at one time.
usually the first Dr appointment is 3 days after for a weight check. Then you need to schedule one for two weeks after birth so they can run a PKU. (they give this card info to you in the hospital) Then you don't have to go back for anymore appointments till your baby's 2 month shots.
After your baby is born, the first visit to the pediatrician should take place two to three days after he or she comes home (for breastfed babies) or when the baby is between 2 and 4 days old (for babies discharged from the hospital before they were 2 days old).