Early Obstetric Ultrasound
About Pregnancy Ultrasounds
You have come a long way! If your fertility doctor or nurse has ordered an early obstetric (pregnancy) ultrasound, it means that your beta hCG (pregnancy blood work) has indicated that you may be pregnant. Your first obstetric ultrasound will be booked between 5 and 8 weeks gestation. The earliest possible date to observe a fetal sac is between 5 and 6 weeks gestation. The purpose of the test is to look for the presence of a gestational sac to confirm an intrauterine pregnancy. Your fertility doctor may continue with additional obstetric ultrasounds every other week.
In the first trimester of pregnancy (weeks one to 12), obstetric ultrasounds are 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 embryo does not attach to the inside of the uterus)
- diagnose a miscarriage
- look for any abnormal features in the fetus
This can be a highly emotional and anxious time for fertility patients. Having a good support system, including a counselor, coach, family, or therapist can be beneficial.
Steps to Prepare for a Pregnancy Ultrasound
ALLERGY ALERT : Notify the sonographer if you have a latex allergy.
Investigative and Pre-Treatment Ultrasounds
Ultrasounds that Occur During Treatment
Follicle Tracking Ultrasound
A vaginal ultrasound performed during an IUI, IVF or Egg Freezing cycle to assess the number and growth of your follicles. This test helps the doctor know when your ovaries are ready.