31 Weeks Pregnant with Twins: Ultrasound, Symptoms, and More

31 weeks pregnant with twins puts us in the last quarter of your pregnancy.

Whilst there’s always a chance you could run over, because you’re carrying twins, you know as well as we do that you’re more likely to deliver them a few days early instead.

This last stretch is heavy going for a lot of moms, but we know you’ve got what it takes to crush it. After all, you’ve come this far, right!

This doesn’t mean that it might not still be difficult, and you’re well within your rights to take a few hours to relax on harder days. Just as a reminder, here’s what you can expect this week:Twin Pregnancy Symptoms at 31 Weeks

A single fetus at 31 weeks

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Your Twin Babies at 31 Weeks Pregnant

Every one of your babies’ senses are active and working right now, so they’re completely aware of what’s around them.

They’re still putting on that vital weight, too. Another third of a pound over last week, putting them at around 3.3lbs, and almost 16 inches long.

When you next see your babies on a scan, you’ll also notice that they’re in proportion now, with lengthy, strong arms and legs.

They really are getting stronger, too, with enough grip strength to hold onto a finger, which they’ll be using a lot once they’re born, we’re sure.

You might also have noticed that your babies have their own patterns of sleep and wakefulness, as well as periods of activity.

You should be tracking their movement with a regular kick count like we said to a few weeks back, so you can know their routines, as well as giving yourself an early warning if anything goes wrong.

Twin Pregnancy Symptoms at 31 Weeks

Your symptoms aren’t going to change in the next few weeks. They’re just going to get a little bit worse. But thankfully, you’ve had a lot of experience dealing with it all, so you should know what to do by now to make yourself feel as good as possible.

  • Pregnancy brain: Whether you want to believe it or not, it’s definitely a thing. Lack of sleep and hormones can contribute, but you might just find yourself feeling woozy and forgetful, with no good reason. If this happens, don’t worry about it. Just remember, your smartphone is your friend.
  • Lack of breath: As your babies get bigger, you’re going to notice shortness of breath and maybe even a little trouble breathing. This is going to get worse over the next couple of weeks, until your babies start to descend towards the pelvis a little more, giving you space to breathe again.
  • Aches and pains: The bigger your babies get, and the more they weight, the more strain there is on your body. So expect your aches and pains to get a little worse over the next few weeks.
  • Leaking boobs: Your boobs are ready for your babies’ first meal, so they might already be leaking small amounts of colostrum milk.
  • Constant urge to pee: All this pressure on your bladder isn’t good for control, or the sanctity of your undies. Go to the toilet as often as possible, and drink little and often, rather than overloading yourself with fluids.
  • Braxton Hicks contractions: They’re still here, and still coming, as your body is still practising for the big day. As long as they’re not frequent or painful, Braxton Hicks contractions are absolutely nothing to worry about.

31 Weeks Ultrasound Twins

If you didn’t have an ultrasound last week, you might be lined up for one this week, especially because you’re carrying twins, just so your doctor can check up on everything going on in there.

If there’s any complications, such as gestational diabetes, it’s also possible that your doctor wants to check up on you more often as well. Either way, you’re in safe hands, so unless you’re specifically told of a risk, it’s not worth worrying more than usual.

Another choice that you might have considered is a 3D/4D ultrasound scan. If you’ve seen them before, you know that they’re a fantastic memento of your pregnancy, as a full scan and video of your babies faces in the womb.

In fact, it’s even possible to see facial expressions change, and for them to do things like suck their thumbs.

Talk to your doctor about the possibility of this procedure, but if they don’t offer it, you can always approach an independent imaging centre to get it done yourself.

They’re surprisingly inexpensive, especially if you book it early. And we’d recommend booking it early, considering you never know when your twins might decide to come say hi!

Things To Do this Week for a Healthy Pregnancy

  • Do you have everything you need? It’s going to be a lot easier to get it now, rather than in the last few weeks of your pregnancy, not to mention the chance that your twins might come early! Make sure the nursery is set up, and you have all the essentials packed and ready to use.
  • When you’re considering whether you have everything, one thing you might overlook is baby proofing. Remember, with things like this, too early is just early enough. It’s so easy to miss something obvious, and getting it done now lets you go back over it closer to the due day.
  • Why not set up your Baby Registry?

Worth Buying Now


This week were focusing on feeding time again. Remember it’s worth getting these things organised in advance. You want to be able to relax towards the end of your pregnancy knowing that you have everything prepared.

  • Your nipples will get very sore – this cream can help.
  • Using a breast pump can help give your nipples the time off they will crave. This pump comes highly rated.
  • Feeding twins gets complicated which is why this twins nursing pillow is a life saver.
  • Nursing bras are a must. These are comfortable and supportive.

'Must Haves' in Trimester 3

We asked the TwinStuff Community what their Must Have products were during the Third Trimester:

Are You 31 Weeks Pregnant with Twins?

You’re getting so close! There’s going to be a lot going on in the next few weeks, so make sure to check back in with us for your heads up.

Remember, if you’ve ever got any questions we haven’t already answered, drop us a comment and we’ll see what we can do. How do you feel at 31 weeks pregnant with twins?

  • Mj says:

    I feel tired . I feel my body is heavy for my legs to carry. I’m very emotional these days. I feel like I’m just there neglected by myself and my skin is so dark and dry.

  • T.T says:

    I feel drained. Having to run behind a 1 year old and having twins that’s already weighing 4 pounds is very tiring. My nights are the worst.

  • T.Decker says:

    I feel amazing! Yes I tire out early but I can nap when ever I feel low. I feel heavy and out of breath at times as well. I’m always down to eat. I stay thirsty and feel like an alive “baby alive” doll bc it runs straight threw me! But over all, I’m happy!

  • Christine says:

    Aww man…I have no energy to do anything. If and when i do get a spurt of energy my body hurts too much to do anything. I can’t breathe even while sitting still…. everything is horrible right now. And to top it off I’ve caught a cold and pee myself everytime I cough or sneeze. I’m just so ready to give birth to healthy babies…

  • Waty says:

    Looking for the days to have my twinnie on hands.
    Now at 31 weeks makes more lazy to go to my office….hahahahaha
    feels like sleeping on comfortable BED…..

  • Roni says:

    I’m wanting to go into labor so bad and I can’t help but try everything to start it. Baby B is now by rib 6-7 and I can’t breath anymore and it’s causing me panic attacks when he kicks or punches me because of the excruciating pain. My doctors are saying to hold on for another 5 weeks, but mentally I can’t. My body can’t handle it anymore.

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