At a length of about half an inch right now, your baby has graduated from blueberry-sized to raspberry-sized. But weekly growth is getting a bit hard to estimate, and here's why: Growth occurs at about the rate of one millimeter each day, but that growth isn't necessarily just in height. Spurts can occur in the arms, legs, back, and other parts of your baby's body. So, big changes will be occurring every which way in the coming months.
A close-up view of your little embryo would reveal a more baby-like appearance. You'd see an upper lip forming, the protruding tip of that cute button nose, and tiny (and very thin) eyelids. And check out those hands and feet! Your baby's webbed fingers and toes are differentiating now.
His or her heart is beating at the incredible rate of 150 times per minute. (That's twice as fast as your heart beats.) Your baby's digs are growing, too. Amniotic fluid increases at a rate of about two tablespoons per week to accommodate your womb's growing tenant.