I just think this stuff is so neat that i am going to share...
Your heart is increasing its output to supply the baby with oxygen. Your enlarged heart is pumping about 20% more blood than prepregnancy. This volume will actually increase throughout your pregnancy for an ending increased heart output of 30-50%.
At around 4 inches long, crown to rump, your baby now weighs about 2 1/2 ounces. He's busy inhaling and exhaling amniotic fluid, which will help develop the air sacs in his lungs. His legs are growing longer than his arms now, and he can move all his joints and limbs. That means his hands are more functional, too. Sweat glands are appearing, and although his eyelids are fused shut, he can sense light. If you shine a flashlight at your tummy, he's likely to move away from the beam. There's not much for your baby to taste at this point, but his taste buds are beginning to form. And if you have an ultrasound, you may be able to find out whether your baby's a boy or girl!
Your baby may have developed the habit of sucking his or her thumb! The skin is very thin and you can see the blood vessels clearly underneath. Many fetuses develop their future hairline pattern this week, although it can take quite a bit longer for some babies' hairline or hair to fully develop.
Our little fig has become a lemon now :D
Hope all is well! Love ya!