Subscribe to our newsletter
7 weeks pregnant, or 5 weeks after conception: organ development

This week, your baby's nostrils become visible and their retinas start to form. Little buds, which will eventually become arms and legs, are growing. The heart morphology becomes more complex as the four chambers of the heart and their valves begin to form.
The most important development this week is the cortex, your child's brain is developing with the appearance of the two hemispheres and grey matter.
Related articles

Pregnancy week by week
11 weeks pregnant, or 9 weeks after conception: the embryo becomes a fetus

Pregnancy week by week
10 weeks pregnant, or 8 weeks after conception: hearing baby's heartbeat

Pregnancy week by week
9 weeks pregnant, or 7 weeks after conception: limbs develop

Pregnancy week by week
8 weeks pregnant, or 6 weeks after conception: mobility

Pregnancy week by week
6 weeks pregnant, or 4 weeks after conception: closure of the neural tube

Pregnancy week by week
5 weeks pregnant, or 3 weeks after conception: the formation of the umbilical cord