§first trimester · week 7 of 40
you're 7 weeks pregnant.
last revised · baby is about 1 cm (0.39") · 0.8 g (0.03 oz)
about the size of a blueberry.
Limb buds lengthen into paddles. The brain divides into three primary regions and the umbilical cord takes shape.
this week's highlights
- Brain divides into three regions
- Paddle-shape hands and feet
- Umbilical cord forms
- Liver starts making blood cells
how your baby looks
Curved like a tiny shrimp with paddle-shaped hands and feet and a clearly visible head. Eyes are still on the sides of the face and the tail is shrinking.
body in focus
- head
- Brain divides into forebrain, midbrain, and hindbrain regions.
- body
- Liver starts producing the first blood cells.
- hands
- Hand paddles begin to show ridges where fingers will form.
- feet
- Foot paddles begin to show ridges where toes will form.
what's happening in your body
Nausea and fatigue often peak around now. Your uterus has doubled in size and you may feel light cramping as it stretches.
gentle tips
- Eat protein-rich snacks (nuts, yoghurt, eggs) to steady blood sugar.
- Brush your teeth gently — pregnancy gums bleed more easily.
- If you smoke, ask your provider for support to quit now.
- Confirm your first ultrasound appointment for the next 1–3 weeks.
- Vent to a partner or friend — early-pregnancy emotions are real.
what to expect next
By week 8, fingers and toes begin to separate and the embryo can move tiny limbs, though you won't feel it for many weeks yet.