25 Weeks pregnant: How your baby’s growing and what you should know

An illustration of a uterus and a fetus the size of a courgette representing 25 weeks pregnant.
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Created with Natasha Lowe Osho, MD, Obstetrician-Gynecologist, USA

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In a nutshell

At 25 weeks pregnant, your baby weighs about 1.5 pounds and actively practicing movements like kicks and stretches. Your body is adapting to a larger bump and symptoms like frequent urination, which can be managed with small lifestyle adjustments.

Welcome to week 25 of your pregnancy journey! Your belly is likely more noticeable, and you might be navigating new or changing symptoms, like increased urination or mild back pain. As you move closer to the third trimester, understanding what’s happening with your baby and body can help you feel prepared for what’s ahead. Here’s everything you need to know about week 25, including tips for staying comfortable and healthy.

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25 Weeks pregnant symptoms

Here are the common symptoms to expect during week 25:

  • Frequent urination: Your growing uterus is putting more pressure on your bladder.
  • Back pain: Extra weight and a shifted center of gravity can strain your lower back.
  • Heartburn: Hormonal changes and the growing baby pressing on your stomach may cause discomfort.
  • Braxton Hicks contractions: Irregular, mild contractions are normal as your body prepares for labor.
  • Swelling (edema): Increased blood volume may cause mild swelling in your hands and feet.

👉Find out more: 24 Weeks pregnant: From tiny kicks to big developments

Your body at 25 weeks pregnant

At 25 weeks, your uterus is about the size of a soccer ball, sitting above your belly button. This growth shifts your center of gravity, which can lead to backaches and balance changes. Your baby’s increased movements may be more noticeable, especially during quiet moments or at night. Maternity clothing is likely your go-to for comfort as your bump becomes more prominent.

In the second and third trimesters, women with an underweight or normal pre-pregnancy BMI should aim to gain approximately 1 lb per week, while those with an overweight or obese BMI should target about 0.5 lbs per week. Using a pregnancy weight gain calculator can help you monitor your progress and stay within the recommended range.

Baby development at 25 weeks of pregnancy

At 25 weeks, your baby’s lungs are maturing, preparing for their first breaths after birth. Their skin is becoming less translucent, with fat deposits starting to form, which will regulate their body temperature. The baby’s senses, especially hearing, are developing rapidly, and they may recognize familiar sounds like your voice or heartbeat.

25-week baby size

The 25-week fetus size is approximately 13.5 inches long and weighs about 1.5 pounds, roughly the size of a courgette. This week marks significant growth as the baby continues to build strength and coordination.

25-week ultrasound

If you have an ultrasound this week, you may see your baby moving actively, practicing reflexes like sucking or grasping. This scan can also provide insights into their growth and position, and some parents use it as an opportunity to capture keepsake images.

Tests to expect at 25 weeks pregnant

At 25 weeks pregnant, your healthcare provider will continue to monitor your health and your baby’s development with the following tests:

  1. Blood pressure monitoring: Regular checks to assess for high blood pressure or preeclampsia, which can develop later in pregnancy.
  2. Fetal heartbeat and movement: Your provider will listen to your baby’s heartbeat and may ask about the frequency of fetal movements, ensuring the baby is active and developing well.
  3. Urine test: A urine sample will be tested for signs of protein or glucose, which could indicate issues like gestational diabetes or preeclampsia.
  4. Blood tests: Blood work may be performed to check for anemia or other conditions like infections that could affect your pregnancy.
  5. Ultrasound (if needed): If there are any concerns about the baby’s growth or position, an ultrasound may be performed to monitor fetal development and amniotic fluid levels.

These tests at 25 weeks help ensure that both you and your baby remain healthy as you enter the third trimester. Make sure to discuss any concerns with your healthcare provider.

👉Find out more: 

Navigating week 26: Baby’s Growth, symptoms, and expert tips

27 Weeks pregnant: Baby’s growth, symptoms, and tips for the third trimester

Health tips and self-care at 25 weeks pregnant

  • Manage frequent urination: Limit fluids before bedtime and empty your bladder fully to reduce nighttime trips to the bathroom.
  • Support your back: Use a lumbar support pillow when sitting and consider gentle stretching exercises or prenatal yoga.
  • Stay hydrated: Despite frequent urination, hydration is essential for both you and your baby’s health.
  • Eat smaller meals: To combat heartburn, opt for smaller, more frequent meals and avoid lying down immediately after eating.

Things to avoid at 25 weeks pregnant

  • Standing for long periods: This can exacerbate swelling or cause fatigue. Take breaks to sit and elevate your feet.
  • Heavy lifting: Avoid tasks that strain your back or abdominal muscles.
  • Overeating spicy or fatty foods: These can trigger heartburn and indigestion.
  • Sleeping on your back: It’s best to sleep on your side to improve circulation and reduce pressure on your major blood vessels.
Track your pregnancy with ease!

With Femia, you will get personalized insights every step of the way

Try Femia now

Questions from the Femia community

  • Should I consider a private room in the hospital?

    A private room can offer more privacy and comfort during your postpartum recovery. If you’re considering this option, discuss availability, costs, and included amenities with your hospital ahead of time.

  • How to make frequent urination more convenient?

    Limit fluids before bedtime but stay hydrated during the day. Plan bathroom breaks when you’re out to avoid discomfort and consider wearing loose, comfortable clothing to make trips easier.

  • Why do I feel mild contractions?

    These are likely Braxton Hicks contractions, which are irregular and painless. They’re normal and help prepare your uterus for labor. If contractions become regular or painful, contact your healthcare provider.

The bottom line

At 25 weeks pregnant, your baby is growing steadily, and their movements are becoming more noticeable. You may experience symptoms like frequent urination, heartburn, or mild swelling, which can often be managed with small adjustments to your routine. Staying active, hydrated, and comfortable is key as you move closer to the third trimester.

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