baby : your baby now measures about 4. 3 to 4. 6 inches from crown to rump and weighs about 2. 8 ounces. fingernails are well-formed and the fine hair lanugo may be growing on the head. arms and legs are moving. the nervous system is functioning and muscles are responding to stimulation from your baby's brain. you may be able to hear the baby's heartbeat in the doctor's office. mom-to-be : your uterus has grown significantly by now and weighs about 8. 75 ounces. within the next few weeks you may start to feel your baby move called "quickening. " it's often like a gas bubble or subtle fluttering movement. as it happens more regularly you'll know it's your baby. there are other physiological changes happening in your body. increased blood volume to support your growing fetus may produce nosebleeds and leg veins may become more apparent. your uterus is shifting so you may not have to urinate so much. tip of the week : if veins in your legs are beginning to bulge you may want to use support stockings elevate your feet when you can and exercise to improve blood flow.
what can i expect during week 16 of my pregnancy?