Fetal Growth Calculator

• Baby looks like a little tadpole, all head, little body and small buds where the legs will be formed.
• The heart begins to pump blood, and the neural tube that will become the spine closes. The embryo takes on a C-shape; arm and leg buds begin to form; and the skin is translucent.
• The heart is bulging from the body and circulation is well established. Baby’s heartbeat can be seen on a vaginal ultrasound, beating at around 80 BPM.
• The larynx starts to form as does the inner ear. The lining of the placenta begins to develop but the placenta will take over production of the hormones in week 12.
• Limb buds appear and the primordia of the liver, pancreas, lungs, and stomach are evident.
• Baby's jaw, chin and even cheeks starts to form, tiny as they are, they will only grow bigger from this week on.
• Baby will grow to average length of about ⅓ inch or 7 to 9 mm Crown to Rump (CR) towards the ends of this week.

Note: Information provided above is for general education only, growth of baby inside womb depends upon many factor and growth of your baby may differ slightly than indicated above, please seek medical advice whenever in doubt.