Your baby's head is getting bigger and his brain is developing billions of neurons (important for later learning) at an amazing rate. His nutritional needs are growing too. To meet his body's demands, you'll need plenty of protein, vitamin C, folic acid and iron. His bones in particular are soaking up lots of calcium right now, so drink your milk (or if you don't like the taste, try calcium-enriched orange juice or soya bean drink and other soy products).
How your baby's growing
Your baby's brain is growing rapidly, and the head is getting longer to accommodate it. If you're having a boy, his testicles are moving from their location near the kidneys through the groin. If you're having a girl, her clitoris is relatively prominent because her still small labia don't yet cover it. That will happen in the last few weeks before birth. Read more information on your baby's development this week.
How your life's changing
As your appetite increases to match your baby's third trimester growth spurt, try to resist eating too many cakes, sweets and fast food snacks - follow our tips for eating well at this stage of pregnancy. Make sure you're getting enough iron, which helps your baby make red blood cells. Iron supplements can make you constipated so it's a good idea to try to boost your iron intake first by including sources such as meat, leafy greens, and fortified cereal in your diet along with fibre-rich foods to help things move along smoothly.
If you haven't already adapted your exercise regime, now is a good time to introduce some activities to help your body to stretch and open up ready for the birth. Why not try to find a yoga class specifically for pregnant women? Not only will it help you to breathe deeply, but the instructor will show you stretches which may help you get into and maintain comfortable positions in labour. Even the occasional stretch and wiggle can help you avoid pregnancy niggles such as leg cramps - so get moving and stretching!