Generally, appointments are every 4 weeks until around 28 weeks, then every 2 weeks until around 36 weeks, then weekly until delivery. If you or your baby have other conditions that can affect your pregnancy, then you may be seen more often for visits. You can expect an ultrasound at your first visit to confirm how far along you are and at 20 weeks to assess the full anatomy of your baby. Other ultrasounds may be done at your provider’s discretion such as a growth ultrasound during the third trimester.