December 6, 2019 by Imara Editor7


  1. What is a pregnancy ultrasound?

A pregnancy ultrasound is a test that uses high-frequency sound waves to image the developing baby as well as the mother’s reproductive organs. The average number of ultrasounds varies with each pregnancy. An ultrasound, also called a sonogram, can help monitor normal fetal development and screen for any potential problems.

  1. Reasons for a pregnancy ultrasound

An ultrasound can be used for a variety of reasons during pregnancy.

  1. During the first trimester of pregnancy

In the first trimester of pregnancy (weeks one to 12), ultrasounds may be done to:

confirm pregnancy  `

  • check the fetal heartbeat
  • determine the gestational age of the baby and estimate a due date
  • check for multiple pregnancies
  • examine the placenta, uterus, ovaries, and cervix
  • diagnose an ectopic pregnancy (when the fetus does not attach to the uterus) or miscarriage
  • look for any abnormal growth in the fetus


  1. During the second and third trimesters of pregnancy

In the second trimester (12 to 24 weeks) and the third trimester (24 to 40 weeks or birth), an ultrasound may be done to:

  • Monitor the fetus’ growth and position (breech, transverse, cephalic, or optimal)
  • Determine the baby’s sex
  • Confirm multiple pregnancies
  • Look at the placenta to check for problems, such as placenta previa (when the placenta covers the cervix) and placental abruption (when the placenta separates from the uterus prior to delivery)
  • Check for characteristics of down syndrome (normally done between 13 and 14 weeks)


  • Check for congenital abnormalities or birth defects



  • Examine the fetus for structural abnormalities or blood flow problems
  • Monitor the levels of amniotic fluid
  • Determine if the fetus is getting enough oxygen
  • Diagnose problems with the ovaries or uterus, such as pregnancy tumors
  • Measure the length of the cervix
  • Guide other tests, such as amniocentesis
  • Confirm an intrauterine death

Author: Plankington Menjah

Sonographer Imara Mediplus Hospital


  • Gillian njeri

    December 16, 2019 at 10:45 am

    Menjah keep shining my collegemate , nyeri kmtc produces stars n u r one of them. Educate people sir n aim higher


  • Jesse Ford

    May 20, 2020 at 11:30 pm

    I like how you mentioned that an ultrasound can help check the fetal heartbeat, estimate the due date, and check for multiple pregnancies. My wife and I are thinking of looking for a clinic that specializes in HD ultrasounds because we want a picture that as clear as possible of what our child will look like. I think it’s best for us to consider all of our options when choosing a reputable establishment that has the equipment we need to show clear images of our unborn child.


    • Imara Mediplus

      July 14, 2020 at 7:13 pm

      Hi Jesse, this sounds great. Many thanks for creating time to go through our content.


    • Imara Mediplus

      July 14, 2020 at 6:27 pm

      We appreciate your feedback.


    • Imara Mediplus

      July 14, 2020 at 6:28 pm

      Thank you for sharing with us this.


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