31 Weeks Pregnant: How Your Baby Grows Inside You, Symptoms, Belly Size & More

31 Weeks Pregnant: How Your Baby Grows Inside You, Symptoms, Belly Size & More

5 Jan 2017 | 4 min Read

Nidhi Pandey

Author | 27 Articles

Your pregnancy week by week timeline shows that your little one is not so little anymore! From a tiny cell, your baby has now grown well over 16 inches long and weighs almost 1800 grams, which is about the size of a coconut! Your baby now finds the space inside your womb restricted and might move with less intensity and is also gaining more fat.  You will also notice that your baby kicks more at night and seems to rest during the day. 

Let’s learn more interesting details about the 31st week of pregnancy, and common symptoms that you will experience during this week. 

31 Week Fetus Development 

As you step into the 31st week of your pregnancy, the majority of your baby’s significant development is complete.

How Big Is A Baby During 31 Weeks Pregnancy?

Your baby is roughly the size of a coconut which is around 41.1cm long from head to heel, and they weigh around 1.5kg.

31 Weeks Pregnant Symptoms

You might experience breathlessness, loss of appetite, acidity, and frequent urination during this week. All this might make you feel very uncomfortable but this is going to last only for a few more weeks, so relax.

Physical Development

The feeling of breathlessness might increase when you climb stairs or try to talk continuously. This is no cause for concern. It happens because your uterus is pushing against your lungs. You might feel that you are gasping for air but your baby is receiving enough oxygen. So don’t worry!

Your bra size is still changing and you might need to get a larger size but remember not to use underwire bras while nursing.

Emotional Development

One of the biggest fears that haunts most expecting mums is that they will not reach the hospital in time and deliver in the car itself! This happens a lot in the movies and rarely in reality. Keep in mind that for most first-time mothers, labour usually lasts for 12-24 hours and this gives you enough time to get to the hospital safely.

Your Body At 31 Weeks Pregnancy

Due to your expanding belly, you might find it difficult to sleep. Try to change your sleeping position, and invest in a pregnancy pillow to support your back and legs while sleeping. 

31 Weeks Pregnant Belly Pictures 

31 Weeks Pregnant Belly Pictures 
Image credit: Babycenter.com

31 Weeks Fetus Pictures 

31 Weeks Fetus Pictures 
Image credit: Researchgate.com
31 Weeks Fetus Pictures 
Image credit: Smababy.com

31 Weeks Pregnant Ultrasound: Do You Need It?

Between 26 and 32 weeks of pregnancy, you can have a 3D/4D High-Definition Ultrasound scan done to see your unborn child’s face and limbs. However, discuss the test with your doctor before deciding.

Self Care Tips And Checklists For 31 Weeks Pregnancy

Here are some self care tips and checklists for leading the healthiest life possible during your 31 weeks pregnancy. 

  • If you haven’t already, it’s time to pack your hospital bag because delivery day is quickly approaching. If you have any worries during this third trimester, make an appointment for a checkup.
  • If you notice sudden facial swelling, talk to your doctor.
  • Drink plenty of water every day.
  • Do light exercises or simply walk around to get your body moving.
  • Wear the most comfortable shoes, avoid wearing heels during this period. 
  • Spend time outdoors.
  • Do a skincare routine at least 3-4 days a week to make your skin glowing and supple.
  • Treat yourself. You deserve some “me time” because you’ve been working so hard.


Is 31 weeks considered 8 months pregnant?

No, 31 weeks is considered 7 months pregnant.

Can a baby be fully developed at 31 weeks?

Yes, your baby is almost formed during this period.

Is 31 weeks considered 7 months pregnant?

Yes, 31 weeks is considered 7 months pregnant.

What should I expect at 31 weeks pregnant?

Trouble sleeping, morning sickness. 


Keep track of your baby’s movements throughout your pregnancy. During an active period, your baby should move about 10 times within an hour. If you notice any change in the number of movements or the duration in which the movements occur then make sure that you report them to your doctor. 



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