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Your Pregnancy Journey in 3D Ultrasound: What’s Happening at 7 Weeks?

Writer: A.S, RDMSA.S, RDMS

Updated: Mar 5

At 7 weeks pregnant, your baby is growing fast, and big changes are happening!


3D Ultrasound at 7 Weeks

  • A tiny embryo and a flickering heartbeat are often visible on 3D Ultrasound! 💓

  • The yolk sac and gestational sac are still present, helping nourish the baby.


Quad image illustrating the 7th week of pregnancy: a 2D ultrasound clearly labeled "BABY" (top-left), a detailed 3D ultrasound image (top-right), a Flo  medical illustration of the fetus (bottom-left), and fresh blueberries in baskets (bottom-right) representing the baby's approximate size.
Quad image illustrating the 7th week of pregnancy: a 2D ultrasound clearly labeled "BABY" (top-left), a detailed 3D ultrasound image (top-right), a Flo medical illustration of the fetus (bottom-left), and fresh blueberries in baskets (bottom-right) representing the baby's approximate size.

The Baby’s Development

  • Your baby is now about the size of a blueberry! 🫐

  • The heart is beating at about 100-180 beats per minute.

  • Tiny arms and legs are starting to form, along with facial features like the eyes and nose.

  • The brain is rapidly developing, and the umbilical cord is now providing nutrients.


Your Body’s Changes

  • Pregnancy symptoms like nausea, fatigue, breast tenderness, and food aversions may be stronger.

  • Your uterus is growing, but it’s still too early to have a visible baby bump.


Your baby is developing quickly, and each week brings new growth! 💕


Want to know what’s next? 😊

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