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Week by week

Week 5

First trimester

Your baby is the size of a Sesame Seed

0.2 cm
Length
0.6 g
Weight

This week at a glance

❤️HeartbeatHeart tube is forming but not yet beating
🧠Major developmentNeural tube and early heart structures form

Your baby is now an embryo with a defined head and tail end. The neural tube — which becomes the brain and spinal cord — is forming, and the earliest heart and circulatory structures are developing.

Nutrition

Folic acidIronVitamin B6Vitamin D

Spinach and kale · Fortified whole-grain cereal · Bananas · Lean poultry · Lentils

Tips

Do

Avoid