Week 25 of Pregnancy
You’re nearing the end of your second trimester, and both you and baby are growing rapidly. Your baby is becoming more active, and their senses are developing quickly. You might be experiencing stronger kicks, backaches, or even some sleep disruptions. This week is a great time to begin thinking more seriously about your birth plan, newborn essentials, and support systems for postpartum life. Take time to rest, hydrate, and check in with your provider if you have any concerns.
Baby’s Size
Your baby is about the size of a cauliflower.
Baby’s Development at 25 weeks
Lung Development Continues
Your baby's lungs are developing tiny air sacs called alveoli, preparing for breathing after birth. Surfactant production has begun, which helps the lungs inflate properly once your baby takes their first breath.
Heartbeat is Audible with a Stethoscope
The heartbeat is strong enough to be heard using a regular stethoscope. This is an exciting milestone for many parents, making bonding feel even more real and tangible.
Sense of Balance Begins to Form
The inner ear structures responsible for balance are forming, so your baby can now start to tell which way is up and down. Movements may feel more purposeful as your baby starts to explore space inside the womb.
Exploring the Womb with Touch
Your baby is now using their hands to explore the environment and may even grab the umbilical cord. Touch plays a big role in brain development and sensory integration at this stage.
Pregnancy Symptoms during Week 25
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The growing uterus pushes on your stomach, making heartburn and indigestion more common. Eating smaller, more frequent meals and avoiding spicy or greasy food can help ease discomfort.
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As your center of gravity shifts and your ligaments loosen, lower back pain may increase. Stretching, using proper posture, and supportive shoes can help minimize discomfort.
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Mild swelling is normal due to increased fluid retention and pressure on veins. Elevating your feet during rest and drinking plenty of water can help reduce swelling.
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These "practice" contractions may start to become more noticeable this week. They are usually painless and irregular, helping your body prepare for labor later on.
Pregnancy checklist at 25 weeks pregnant
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Around 24 to 28 weeks, you'll take a glucose tolerance test to check for gestational diabetes. It’s a routine but important screening for you and your baby's health.
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Now is a great time to research and select a pediatrician. Ask friends or your care provider for recommendations, and consider scheduling introductory appointments.
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Start outlining preferences for your birth experience, such as pain relief options or support people. This helps you and your provider stay on the same page.
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Anemia is common in pregnancy, so ask your care provider if your iron levels should be tested. Eating iron-rich foods like spinach and red meat can also help maintain healthy levels.
25 Weeks Pregnant Belly
By week 25, your belly has grown significantly and is now noticeably round and prominent. Your uterus is about the size of a soccer ball and typically sits midway between your belly button and your ribs. This shift in size and position can change the way you move, sit, and sleep. Many expectant parents find it necessary to adjust their clothing and posture to accommodate the changes.
At this stage, baby kicks and movements can often be felt from the outside, making it an exciting time for partners or loved ones to begin bonding with your baby. These flutters and jabs may become more regular and can vary in strength and frequency. You might also notice your skin stretching more, which could lead to tightness, mild itching, or the appearance of stretch marks on your belly and surrounding areas. Supporting your growing bump with belly bands or maternity support wear and moisturizing regularly can offer some relief and added comfort.
This week marks a visible and physical milestone in your pregnancy journey, your growing belly is a beautiful reminder of how far you’ve come and how much your baby is thriving inside.
Tips & Resources
Free Resource: Birth Plan Template- Download our free Birth Plan handout to help you start thinking through your labor preferences, pain relief options, and immediate newborn care decisions. Having this filled out ahead of time gives you confidence and clarity when it matters most.
Stay Hydrated and Eat Iron-Rich Foods- Increased blood volume during pregnancy means your body needs more fluids and iron. Drinking enough water and including foods like beans, fortified cereals, and dark leafy greens can support both your energy and baby’s development.
Practice Prenatal Stretching or Yoga- Gentle stretches and prenatal yoga can help ease aches and improve flexibility. Just 10–15 minutes daily can help your body feel stronger and more prepared for labor.
Explore Our One-on-One Prenatal Class- If you’re seeking personalized guidance, consider booking our Private 1-on-1 Prenatal Class, which covers your unique questions and prepares both you and your partner for birth, postpartum, and newborn care.