Your baby weighs around 500 grams. His body is growing faster than his head so by the end of this month, the proportions will be practically the same as for a newborn baby. The fingernails and toenails are fully formed.
Your baby will start breathing now too. Not breathing in air, of course, but amniotic fluid. He's practising what to do once he's been born.
His lungs are not fully functional yet.
You may notice a little yellowish fluid leaking from your breasts. This is colostrum, the first 'milk' your baby will drink after birth (if you intend to breastfeed). It is perfectly normal for this to happen now, but equally normal if you produce no colostrum until the baby is born. So there's no reason to worry either way.
Colostrum is full of antibodies and protects the baby from infection and disease. Compared with normal feed, colostrum has much higher levels of protein, vitamins and minerals and lower levels of fat and sugar. It stimulates the digestive system and is, in effect, a natural laxative ensuring that the baby's organs dispose of all the waste that has collected in its little body during pregnancy.
The colostrum will turn to milk after 3-5 days. The fluid will gradually become thinner and turn from yellowish to a bluish white.
You will produce normal breast milk within about ten days of giving birth.
Many women develop anaemia around now. This is due to your body´s rapid growth and the extra blood you have to produce. This may result in low iron levels, which can make you feel weak, faint and even a little dizzy at times. Your iron level or Hb level (Haemoglobin) can be tested using a special device. All it takes is a single drop of blood from your finger. If your iron level is too low, you will be advised to eat more iron-rich foods. If this doesn't help raise your Hb level, then you could be prescribed iron tablets.
You may find you develop reddish stretch marks, so-called striae, on your abdomen, breasts, legs and/or bottom. They are harmless and caused by the skin stretching due to rapid growth. You can keep your skin supple with oil or a special cream but you cannot prevent striae. Whether or not you develop stretch marks depends on your skin. After your pregnancy they will fade to a pale pink or white, but will not disappear altogether.