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The Pregnancy Hub

25 weeks pregnant

Get to know your growing baby and the changes you may be feeling.

Choose your week

Week 25

Know your due date?

Enter the due date from your care team to find your estimated week today. Your date stays in this browser tab.

Illustration of a zucchini

Second trimester

About the size of

a zucchini

Approximate length

13.6 in / 34.6 cm Head to heel

Your baby

Your baby may react to a loud sound with a movement, and you might notice small rhythmic hiccups. Swallowing and urine production continue as part of life in the amniotic fluid. A response to sound is not something you need to provoke or use to check well-being; concerns about movement belong with your maternity care team.

Your body

Heartburn can feel like burning that rises from the stomach toward the chest. Pregnancy-related changes in digestion and pressure from the growing uterus can contribute. Smaller meals and avoiding lying down soon after eating may help. Notice whether particular foods or meal times make symptoms worse rather than cutting out many foods without a plan.

This week

Making heartburn easier to discuss

If heartburn is frequent or affects sleep or eating, ask your clinician or pharmacist which treatments are appropriate during pregnancy. Bring the names of any products you already use, including over-the-counter medicines and supplements. Describe the location, timing and severity of discomfort so it is not automatically labeled heartburn. Chest pain, trouble breathing or severe persistent abdominal pain needs urgent medical assessment; do not assume those symptoms are routine reflux. For an ordinary visit question, a brief record of symptoms and what you have tried can help your team suggest a practical next step.

Explore prenatal care

Looking ahead

A question for your next visit

What can I try for heartburn, and which symptoms would need a different assessment?

Browse pregnancy weeks

A little context for these comparisons

These are approximate sizes for each week, not measurements of your baby. Babies and produce both come in different sizes, and the illustrations are not shown to scale.

Before week 20, length is measured from head to bottom. From week 20, it includes the legs, from head to heel. That change explains the jump in length between weeks 19 and 20.

When to get help

If your baby’s usual movements slow down, stop, or change, contact your maternity care team right away.

Seek medical care right away for warning signs such as a severe or persistent headache, vision changes, chest pain, trouble breathing, severe belly pain, vaginal bleeding, leaking fluid, or thoughts of harming yourself or your baby. These are examples, not a complete list. If you cannot reach your care team, seek urgent medical care. Call 911 for a medical emergency.

Read the CDC urgent maternal warning signs (opens in a new tab)
About this guide

Approximate measurements and development information draw on the NHS weekly guides. Linked US health resources support care and preparation topics. The topics are suggestions for discussion, not a schedule of required appointments or tests. Your own care plan may differ.

Every pregnancy is different. Your care team can help you understand your baby’s growth and any symptoms you’re experiencing.