How much weeks is a full term pregnancy

Summary

Read the full fact sheet

  • The unborn baby spends around 38 weeks in the uterus, but the average length of pregnancy, or gestation, is counted at 40 weeks.
  • Pregnancy is counted from the first day of the woman’s last period, not the date of conception which generally occurs two weeks later.
  • Since some women are unsure of the date of their last menstruation (perhaps due to period irregularities), a baby is considered full term if its birth falls between 37 to 42 weeks of the estimated last menstruation date.

This page has been produced in consultation with and approved by:

How much weeks is a full term pregnancy

How much weeks is a full term pregnancy

This page has been produced in consultation with and approved by:

How much weeks is a full term pregnancy

How much weeks is a full term pregnancy

  • In Victoria, you can have two types of abortion: surgical and medication. Both types are safe and reliable. You can have a medication abortion up to nine weeks of pregnancy. You can have a surgical abortion from around six weeks of pregnancy onwards.

  • Pregnant women with asthma need to continue to take their asthma medication as it is important to the health of both mother and baby that the mother's asthma is well managed.

  • Even if your baby furniture meets every safety standard and recommendation, your child still needs close supervision.

  • The cause of birth defects is often unknown, speak to your GP if you are at increased risk of having a baby with a congenital anomaly.

  • Melissa shares her story of how her baby caught chickenpox at 5 weeks old.

Support groups

From other websites

Content disclaimer

Content on this website is provided for information purposes only. Information about a therapy, service, product or treatment does not in any way endorse or support such therapy, service, product or treatment and is not intended to replace advice from your doctor or other registered health professional. The information and materials contained on this website are not intended to constitute a comprehensive guide concerning all aspects of the therapy, product or treatment described on the website. All users are urged to always seek advice from a registered health care professional for diagnosis and answers to their medical questions and to ascertain whether the particular therapy, service, product or treatment described on the website is suitable in their circumstances. The State of Victoria and the Department of Health shall not bear any liability for reliance by any user on the materials contained on this website.

​​"Full Term" Has a New Meaning

The meaning of "term" pregnancy has changed. "Term" has been replaced by more specific definitions that communicate the importance of the last few weeks of pregnancy for infant development. Learn why the term pregnancy definitions are important to promoting the best outcomes for mom and baby.

"Full Term" Starts at 39 Weeks

The American College of Obstetricians and Gynecologists and the Society for Maternal Fetal Medicine announced more specific definitions to describe babies born between 37 weeks and 42 weeks of pregnancy.

In the past, a baby born anytime between 37 weeks and 42 weeks was considered "term." A pregnancy is now considered "full term" at 39 weeks.

How much weeks is a full term pregnancy

Why does this matter?

Research shows that babies do best when they are born during weeks 39 and 40.

Babies born before 39 weeks are at risk for problems with breathing, feeding, and controlling their temperature. They are also more likely to spend time in the neonatal intensive care unit, develop infections, and have a learning disability.

What does this mean for my pregnancy?

Waiting to deliver until at least 39 weeks, in a healthy pregnancy, gives your baby the time he or she needs to grow. Your baby's lungs, liver, and brain go through a crucial period of growth between 37 weeks and 39 weeks of pregnancy. Waiting until 39 weeks, now called "full term," gives your baby the best possible chance for a healthy start in life. 

There may be a time, if there is a health risk to the mother or baby, when a planned delivery before 39 weeks is necessary. But in a healthy pregnancy, it's best to wait until at least 39 weeks.

It is important to know these terms so you and your health care provider can talk about what is best for the health of you and your baby.

Video: Term Talk

View on YouTube

How much weeks is a full term pregnancy
 Text Alternative

Other Program Initiatives

Is full term 37 or 39 weeks?

"Full Term" Starts at 39 Weeks In the past, a baby born anytime between 37 weeks and 42 weeks was considered "term." A pregnancy is now considered "full term" at 39 weeks.

Is 37 weeks full term for a baby?

At 37 weeks, your pregnancy is considered full-term. The average baby weighs around 3-4kg by now. Your baby is ready to be born, and you'll be meeting them some time in the next few weeks.

How many weeks is 9 months pregnant?

What Happens at 9 Months of Pregnancy? 36 Weeks Pregnant.

Is full term 36 weeks or 37?

Early term: Your baby is born between 37 weeks, 0 days and 38 weeks, 6 days. Full term: Your baby is born between 39 weeks, 0 days and 40 weeks, 6 days. Late term: Your baby is born between 41 weeks, 0 days and 41 weeks, 6 days. Postterm: Your baby is born after 42 weeks, 0 days.