An ultrasound done at this stage will show your baby's fluttering heartbeat! He or she is between 0.56 and 0.8 inches from crown to rump, or about the size of a grape. Its liver is churning out large amounts of red blood cells, and will continue to until bone marrow forms and takes over this function.
Week eight marks the beginning of a very busy developmental stage: your baby's face continues to change as the ears, eyes and the tip of the nose appear; the intestines start to form in the umbilical cord; and its teeth begin to develop under the gums.
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