Life is a Miracle!

We are officially 3 weeks and 2 days pregnant! The Blastocyst has become an Embryo and has three seperate layers. The outer layer becomes the brain, nerves, and skin. The middle layer becomes the bones, muscles, blood vessels, heart, and sex organs. And the inner layer becomes the stomach, liver, intestines, lungs, and urinary tract. The inner ear is forming now and by the end of the week the heart should start to beat, although it's almost impossible to hear until around 6 weeks. By the end of this next week, buds on the ends of embryonic arms and legs grow into webs that will become fingers and toes, and blood will circulate throughout the embryo! We are so excited!!!