What are the Necessary Prenatal Appointments?

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  • Written By: C. K. Lanz
  • Edited By: Melissa Wiley
  • Last Modified Date: 13 August 2019
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Necessary prenatal appointments are typically grouped according to each trimester of a woman’s pregnancy. The initial visit during the first trimester is usually the longest, and subsequent appointments are scheduled every four to six weeks through the second trimester. Second trimester appointments commonly involve measuring the baby’s growth, routine lab exams, and prenatal testing. By the third semester, checkups are scheduled approximately every two weeks through week 36 and every week thereafter until delivery.

As soon as a woman believes that she is pregnant, she should schedule her first prenatal visit. This initial visit will be long because the care provider will want to discuss the mother’s medical history, lifestyle issues, and the due date. The mother will also undergo a complete physical exam and labs. Typical labs include screening tests for fetal abnormalities; diseases like syphilis, HIV, and diabetes; and a urine sample.

After the initial visit, prenatal appointments will be scheduled every four to six weeks through the second trimester. At each subsequent first trimester visit, the doctor will check the mother’s weight and blood pressure and administer an ultrasound. The baby’s heartbeat is usually detectable via ultrasound by the end of the first trimester.


Second trimester prenatal appointments often involve measuring the baby’s growth and routine lab tests. In addition to checking the baby’s growth, the care provider may also ask about fetal movements like kicks and listen to the baby’s heartbeat. Lab tests include urine samples and blood tests for gestational diabetes or low iron levels. Mothers can also request prenatal testing for disorders like Down syndrome. If the results of any of these exams are worrisome, an amniocentesis may be performed at this stage.

During the third semester, prenatal appointments are scheduled every two weeks until week 36, when the visits will be weekly until birth. Ultrasound testing will continue throughout the third trimester as the care provider prepares the mother for delivery. A screening for group B streptococcus is typically performed during this stage of pregnancy. Pelvic exams may also be necessary to check the baby’s position and track any cervical changes.

Since the baby’s due date is an educated guess, it is possible that a mother can deliver a week or two prior or past her day. Prenatal appointments will continue in such cases until delivery. The care provider will continue checking the mother’s cervix for changes and keep an eye on the baby’s progress via ultrasound testing.

Prenatal appointments can vary depending on a specific mother’s needs. A mother who is at higher risk for complications may have to visit her doctor or midwife more frequently. The schedule of appointments will ultimately be determined by the mother and her physician or midwife.


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