WebMD:
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, called lanugo, continues to grow 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. 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 described as 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 cause nosebleeds, and veins may become more apparent. Because your uterus is shifting, you may not have to urinate as much.
Baby Gaga:
Over the past three weeks your astounding growing baby has managed to stretch yet another 2 full inches (totaling about 4.5 inches) and weighs around 3.5 ounces. Yessireee, that’s some pretty serious growth… and with it comes several physical developments! For starters, their head to body ratio is finally starting to even out a bit as the rest of the body is actually growing faster than the head at this point. Yes, your little light bulb is not so top-heavy. Their adorable little limbs have lengthened, almost reaching their normal proportions which they will have at birth. Their eyes are still closed but moving and if you had an ultrasound, which many doctors recommend you have at about this time, you may even see your little one sucking on a thumb, not to mention the necessary signifiers to let you know whether you’ve got a wee lad or lassie.