|I'm 17 weeks|
The baby is about 5 inches long and weighs 5 ounces. The cartilage of his/her skeleton is hardening to bone. The bone of the ears and the nerve endings are forming. Soon if not already the baby can hear my voice and heartbeat.
I am feeling fine. I have some days where I am tired, but for the most part I feel great. I have my next appointment at the beginning next month.
(all of my information came from The Pregnancy Countdown Book)