Your 9 months Pregnancy You’re 27 weeks pregnant You are 27 weeks into your pregnancy and you are now in your third trimester! 1 of Ad break How big is your baby?You’re now in your third trimester and your baby is around 24cm long (about the size of a 2 pint carton of milk) and will be just tipping the scales at 1kg in weight.Now find out how your baby is growing… How is your baby growing?Your baby’s eyes will now be fully developed and his eyelashes will be fully grown – he’ll also be able to blink. Your baby is getting stronger day by day, as his bones, organs and muscles continue to go and increased amounts of fat are being layered under his skin. The great news is that if he was born now and given the right specialist care, he would have an 85% chance of survival. Inside her brain, her nerve cells are starting to develop a coating of something called myelin. This is part-protein, part-fat and insulates the nerve cells and connections, meaning that brain connections are faster. That’s why your baby is able to respond more quickly now to different sounds, light and touch. Now find out what’s happening to your body… What’s happening to your body?As you’re fast discovering, all sorts of changes are going on in your body. In fact the only organ that isn’t affected is your ears! When it comes to your eyes, you may notice some change in your normal vision, thanks to those pregnancy hormones.Watch out too when you laugh heartily or suddenly sneeze. There’s a lot of pressure on your bladder from your uterus and baby and so you may leak a little wee when you sneeze, laugh or cough. Don’t despair! You need to be doing your pelvic floor exercises to strengthen your pelvic muscles and prevent this as a future problem. Learn more about what symptoms to expect this week and check out our week by week pregnancy guide...Find out what happened in your 26th week of pregnancy and what is coming up when you’re 28 weeks pregnant. By Sara Mackenzie Comments Latest on MadeForMums Pregnant celebrities 2017 - who's expecting? Chrissy Teigen on the chore she's got Luna's doing at 18 months Must-have toys for Christmas from the biggest sellers Amy Childs' coconut oil trick to grow her baby's hair - does it work?