Good news! If your baby were born today her chances of surviving and thriving in the long run would be excellent. By this week her weighs about 4 3/4 pounds and is almost 18 inches long. Her skin is smooth and her's layering on the fat she needs to control her body temperature when her enters the world. You may be fatigued from lack of sleep, especially from having to run to the bathroom at night as your uterus keeps the pressure on your bladder.
How your baby's growing
Your baby now weighs about 4 3/4 pounds and is probably almost 18 inches long. Her fat layers — which she'll need to regulate her body temperature once she's born — are filling her out, making her rounder. Her central nervous system is still maturing and her lungs are well developed by now. If you've been nervous about going into preterm labor, you'll be happy to know that 99 percent of babies this age can survive outside the womb — and most have no major long-term problems related to prematurity.
How your life's changing
You may be feeling a little fatigued lately, and that's perfectly understandable. Let yourself slow down and save some energy for labor day. If you have to spend a lot of time on your feet, try wearing a maternity belt that supports your abdomen and helps redistribute some of the weight. And if you've been sitting or lying down for a long time, don't jump up too quickly. Blood can pool in your feet and legs, which may cause a temporary (but rapid) drop in your blood pressure and make you feel dizzy when you get up.
Many midwives recommend massaging the perineum (the area around your vagina) to help prevent tearing during childbirth. This is a good time to start, though not everyone is comfortable with this technique and it may not help in every case. You can learn how to do it here.
You may notice itchy red bumps or welts on your belly (they might even spread to your thighs and buttocks). This is usually a harmless condition called pruritic urticarial papules and plaques of pregnancy 孕搔癢性蕁痲疹斑症 (PUPPP for short), but let your practitioner make a diagnosis to be sure. Also be sure to call her if you feel itchy all over your body, even if you don't have a rash. It could signal a liver problem.