6 weeks pregnant baby size
By Pregora Editorial Team · Updated 2026-05-07 · 3 min read

At 6 weeks pregnant, your baby is about 0.5 cm / 0.2 in long and weighs around Less than 1 g — comparable in size to a sweet pea. About the size of a sweet pea — heart starts beating this week.
Length
0.5 cm / 0.2 in
Weight
Less than 1 g
Size of
Sweet pea
Week 6 milestones
- Heart starts to beat at around 90-110 bpm
- Neural tube closes, becoming the brain and spinal cord
- Tiny limb buds begin to form
- Most women confirm pregnancy with a home test around now
Tip for week 6
Morning sickness often starts around week 6. Eat small, frequent meals and stay hydrated.
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Disclaimer: Baby measurements are population averages — individual babies vary. Always consult your healthcare provider for personalised growth assessments based on your ultrasound scans.
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