Jokull "Onion" Huston

17 Weeks:

--Your baby weighs about 5 ounces now, and he's around 5 inches long — about the size of a large onion.
--He can move his joints, and his skeleton — until now rubbery cartilage — is starting to harden to bone.
--His sense of hearing is also developing.
--The umbilical cord, his lifeline to the placenta, is growing stronger and thicker.