Learn the Difference Between Single and Twin Pregnancy Symptoms

Have you recently discovered you or your partner are in the early stages of pregnancy? Congratulations! You might be feeling any range of emotions, from excitement to trepidation at the prospect of welcoming a new addition to your family. Luckily, you’re not alone — we’re here to help, and countless others throughout history have felt the same emotions you’re feeling right now.

Some new parents find their families becoming a little bigger than anticipated. Twin pregnancies have risen sharply over the past few decades, from 18.9 per 1,000 live births in 1980 to 31.9 per 1,000 live births in 2020. This isn’t anything to worry about, as most attribute this increase in twin births to a rise in medically assisted reproduction and mothers waiting to give birth until later in life.

While twins are still relatively rare, it’s helpful to know what to expect from a twin pregnancy, as it can produce rather different symptoms from a single pregnancy. As such, we’ve put together a handy guide below for parents-to-be, especially parents using medically assisted reproduction or older parents.

What are the main differences between single and twin pregnancy symptoms?

Pregnancy can produce a wide array of symptoms, and everyone’s experience is unique. However, the following telltale signs could mean you’re carrying double the joy!

If you don’t have a previous pregnancy to compare your symptoms to, it could be helpful to compare your symptoms to those of any blood relatives with children.

1. More intense morning sickness

We’re sorry to say that morning sickness tends to be worse when expecting twins. While morning sickness can be a nasty and unpredictable aspect of pregnancy, the good news is that it tends to subside around the second trimester for twin pregnancies in much the same way as single pregnancies.

2. Higher levels of water retention

Twin pregnancies can increase the amount of water retention you experience around the joints and ankles. If you’re feeling swollen and uncomfortable, it’s worth contacting your doctor to see how they can help.

3. More frequent urination

Twins put even more pressure on the bladder than single babies. If you’re planning a day out, remember to visit places with easy bathroom access!

4. Severe tiredness

Twin pregnancies cause more severe fatigue and drowsiness compared to single pregnancies. This shouldn’t come as a surprise to those who’ve been pregnant before. After all, your body is busy creating two whole humans! While it may be tempting to blame yourself for low energy, remember to give yourself a well-deserved break and be kind to your body. It’s doing a great job!

5. A larger belly

If you’re carrying twins, your bump will grow faster and larger. By the time you reach the remaining weeks of your pregnancy, it will probably be pretty obvious you’re about to give birth to twins! As well as feeling larger, your bump will be heavier and make moving around pretty difficult. Prepare yourself to spend much of the third trimester on the couch, and remember to raid the maternity aisle to ensure you’re comfortable throughout your pregnancy.

6. Increased weight gain

You may gain a little more weight if you’re expecting twins, as your body will require double the nutrients normally needed for a single pregnancy. Try to practice self love and compassion here, as body changes can be difficult for many women to undergo.

7. Increased risk of gestational diabetes and high blood pressure

Twin pregnancies come with an increased risk of gestational diabetes and high blood pressure, so it’s worth checking in with your doctor to ensure you stay fit and healthy throughout.

8. Increased risk of anemia

While anemia is common among all pregnant women, it’s particularly prevalent in twin pregnancies. Using cast iron pans when cooking and taking a vitamin C supplement with iron-rich meals can improve iron absorption and decrease the risk of anemia.

9. More extreme mood swings

Twin pregnancies can really mess with your mood as hormones start to fluctuate. You may feel a little more tearful or irritable than usual – and that’s okay! Practice intentional and constant communication with your partner to help both of you navigate these difficult feelings.

I have some of these symptoms! What next?

If you’re experiencing any of the symptoms listed above, or simply have a hunch that you’re carrying twins, your doctor will confirm whether you’re having twins via an ultrasound. Typically, they’ll be able to tell whether or not you’re having twins around 10 to 12 weeks from conception.

Extra considerations for twin pregnancies:

If you’re lucky enough to have twins, you’ll need to plan and prepare a little more carefully than you would if you were having one baby. Factors to consider include:

• Twin pregnancies are considered higher risk than single pregnancies, so it’s worth checking in with your doctor regularly if you have any concerns or worrying symptoms. You’ll also need to visit your sonographer more regularly to ensure that your twins are developing healthily. Try not to stress out about the term ‘high risk’, however. It doesn’t mean things will go wrong!
• You’re more likely to have a premature birth, with twins typically born around 35 weeks, rather than 37. As such, you’ll need to plan a little further in advance and ensure your hospital bag is packed and ready to go at an early stage.
• People carrying twins are advised not to travel after around 24 weeks, as complications are more likely to arise toward the end of the pregnancy. 
• Your doctor will probably advise you to take more prenatal vitamins to ensure you get the iron, calcium, and vitamin D you need.
• Exercise can be difficult in the later stages of pregnancy, and doctors will likely warn against any strenuous activity. Rest is super important for twin pregnancies, so don’t feel guilty about relaxing on the couch. 
• Unsurprisingly, having twins can be very expensive. As such, it’s worth doing a little financial planning well in advance. Are there any friends who can help you out with hand-me-downs? Will your folks be available to help with babysitting and save money on childcare? It’s never too early to break out the calculator!

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