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Trimester 1 · week 10 of 40

10 weeks pregnant

Development is no longer just about 'forming the parts' and increasingly enters a stage of growth and refinement of the structures that have already appeared.

Translated from the original Brazilian Portuguese content with the help of artificial intelligence. Read the original in Portuguese

Read about your current week or get ready for what comes next.
Visual size comparison at week 10: a strawberry
Visual reference: a strawberry. Not an individual clinical measurement.
Quick read

In 1 minute

  • Fingers and toes become more separated.
  • Nails start to form around this time.
  • Internal organs keep maturing.
Fetal development

How your baby is doing this week

The limbs are more defined and the joints keep getting organized. The face goes through rapid changes. Between 9 and 12 weeks, the liver, kidneys, pancreas and musculoskeletal system move forward in their development, although they all still have a lot of maturing ahead.

3D artistic representation of fetal development at week 10
Artistic 3D representation. This is not an ultrasound and does not represent your baby's individual development.
Body and routine

What may change in your body

Your waist may look fuller even without an obvious bump. Nausea, gas, constipation and larger breasts are still common. Some people notice more saliva or a metallic taste.

Possible steps

Care for this week

  1. Drink in small amounts throughout the day if large glasses make nausea worse.

  2. Light movement, when cleared and well tolerated, can help your energy and bowels.

  3. Talk about oral health; gums can become more sensitive during pregnancy.

Prenatal care focus

  • Go over the results of your initial tests with your team, without interpreting isolated values outside the context of pregnancy.
Twin pregnancy

If you're expecting twins

A twin pregnancy shouldn't just get an 'extra paragraph': the schedule of appointments and ultrasounds depends on the type of multiple pregnancy.

Support network

For those by your side

Help the pregnant person find time to sleep and eat at times that work around the symptoms.

Common questions

Questions for this week

Is it normal not to have told anyone yet?

Yes. There's no required week for sharing the pregnancy; it's the family's decision.

Can I travel?

It depends on your health, the destination, the length of the trip and the means of transportation. It's worth checking with your team before longer trips.

When to seek care

  • Vaginal bleeding during pregnancy should be reported to your care team; how heavy it is, pain and gestational age change how urgent it is.
  • Severe, worsening or persistent abdominal pain deserves evaluation.
  • Fever, fainting, significant shortness of breath, chest pain or feeling very unwell need medical care.

In an emergency, go to the urgent care service in your area. This content does not replace a professional assessment.

Next · week 11

The next chapter

In week 11, the fetal period begins and growth becomes more and more noticeable on scans.

See week 11

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Sources and transparency

Nilu editorial content, written from the official sources above. Individual clinical review of each week is in progress — this text is for information and does not replace your prenatal care.