Your 9 months Pregnancy You’re 24 weeks pregnant How is your baby growing in your 24th week of pregnancy? 1 of Ad break How big is your baby?Your baby is around 21cm long (about the size of a large aubergine) and approximately 500g in weight.Now find out how your baby is growing… How is your baby growing?Congratulate yourself this week as your baby has now reached the age where, with expert care, she’d have a good chance of survival if she was born this prematurely. However, she’s still thin and her lungs are very immature. The centres of your baby’s bones are getting harder, and she’s increasingly developing muscle. Research on her brainwaves show that she’s almost as active as a newborn baby. Excitingly, studies reveal that she’s now reacting to loud noises outside the womb, shown by an increase in her pulse rate. Your baby’s eyes will still be closed but she now has distinctive eyebrows and eyelashes. More hair is developing on her head and she’ll already be a blonde, brunette or redhead. You’ll just have to wait a little longer to find out! Now find out what your body is doing… What’s happening to your body?As your baby bulks out it’s a very easy time for you to put on extra weight too without really realising it. To keep weight gain under control, make sure that you’re eating a well-balanced diet and try to avoid sugary and fatty snacks. Step on the scales regularly to check that you’re putting on weight within established guidelines and, if you can, continue to get suitable exercise to keep yourself in good physical shape for labour. Learn more about what symptoms to expect this week and check out our week by week pregnancy guide... Find out what happened when you were 23 weeks pregnant, and what is coming up next in your 25th week of pregnancy. By Sara Mackenzie Comments Latest on MadeForMums Cheryl, Liam Payne and child - family facts The moment a little boy, aged 2, sat on Santa's lap one last time Ferne McCann: I've cried every day since becoming a mum Helen Skelton on taming a 2-year-old: "Bribery works for me"