What's Happening at 13 Weeks

I've decided to do weekly updates on whats happening with the babies for each week of their development. I have stacks of pregnancy books on what happens each week, each month, each trimester...you name it. Thought it would be fun to post so that later we can look back and see what was going on with us and where the babies were developmentally.

• End of the first trimester (hallelujah!!!), development of vital organs and structures complete
• Vocal cords are developing (I can only imagine the crying we'll soon be hearing)
• Babies are 2 and 2/3 inches to 3 inches long from crown to rump (about the size of a peach)
• Babies weigh between 1/2 to 2/3 oz each
• Intestines are beginning to move from inside the umbilical cord into the abdomen
• Necks are fully formed and can support head movements
• Babies are starting to sense sound through vibration receptors on their skin
• Liver is now secreting bile and pancreas is producing insulin

I can't wait to see them in my ultrasound next Thursday!