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23 weeks pregnant: what's happening to you and your baby

You're in your second trimester, around 5 months pregnant. How your baby is growing at 23 weeks, what you might be feeling, and what to sort this week.

Katie Manson
October 11, 2026
An expectant couple laughing together
TrimesterSecond
BabyAbout 28.9cm from head to heel
Countdown17 weeks to go

Your baby at 23 weeks

Your baby's limbs are now in proportion.

You may start to see your tummy move when they kick.

Your body at 23 weeks

You might leak a little colostrum.

As your ribcage expands, you may get rib pain or feel more breathless.

Watching your bump ripple is one of the strangest, loveliest bits of pregnancy. Film it.

Your to-do list at 23 weeks

  • Get to know your baby's pattern of movements, and contact your midwife straight away if they slow down.
  • Use high-factor suncream and stay in the shade, as pregnancy skin burns more easily.

When to call your midwife

Contact your midwife or maternity unit straight away if you have bleeding, fluid leaking, severe tummy pain, a bad headache with vision problems or swelling, or, once you're feeling them, your baby's movements slow down or stop.

How big is my baby at 23 weeks pregnant?

At 23 weeks, your baby is about 28.9cm from head to heel.

How many months is 23 weeks pregnant?

23 weeks pregnant is around 5 months, in the second trimester.

What should I do at 23 weeks pregnant?

Get to know your baby's pattern of movements, and contact your midwife straight away if they slow down.

Keep reading

This guide is general information based on NHS week-by-week guidance, not medical advice. Every pregnancy is different, and baby sizes are averages. If you're worried about anything, contact your midwife, GP or maternity unit. See the NHS week-by-week guide.

If you’re trying to conceive (TTC), you probably know that there are certain foods and nutrients that become especially important once you’re pregnant. But nutrition plays a vital role even when trying to conceive, much like laying a strong foundation before constructing a house.

Certain nutrients create that foundation by supporting egg and sperm health (yes, nutrition matters for both partners), hormone balance and creating a hospitable environment for a fertilized egg to implant. In fact, studies show that certain nutrients can help increase fertility and improve success rates for both natural conception and fertility treatments.

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In other words, nutrition is a key player in the TTC journey, but getting the right nutrients in the right quantities can be tricky. That’s where supplements come in. Just as you’d take a multivitamin to fill in nutritional gaps for optimal health, fertility supplements can give you that extra nutrient boost.

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Choosing supplements for your fertility journey

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When choosing a supplement to support your fertility journey, look for science-backed, high-quality ingredients. Our editors are careful to select and partner with brands that use ingredients that have been clinically studied to support fertility. Eu Natural® (pronounced you) covers all those bases and more. We love knowing that Eu Natural® products contain zero artificial additives, binders, or fillers and are lab-tested to ensure purity and potency.

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Photobook: Luthier. Beeches Lane by &Something

When choosing a supplement to support your fertility journey, look for science-backed, high-quality ingredients. Our editors are careful to select and partner with brands that use ingredients that have been clinically studied to support fertility. Eu Natural® (pronounced you) covers all those bases and more. We love knowing that Eu Natural® products contain zero artificial additives, binders, or fillers and are lab-tested to ensure purity and potency.

Katie Manson