At the start of week 15 your baby is about 10 centimetres long and weighs around 50 grammes. Around about now your baby hears his first sounds and will listen to the sounds of your body, your heartbeat and digestion, and even your voice from here

pregnancy experiences and advice with other ThinkBaby members in the pregnancy folder. Blog it - Whatever you decide for your 20-week scan , you can keep a record of it all in a pregnancy blog on the site, so why not update or start your own? Other weeks

Your baby is now around 30 centimetres long and weighs in at nearly 600 grammes, 1.3lbs. This is the week when her nostrils will begin to open and the blood vessels in the lung develop, preparing your baby for the time when she will need to breathe

for this week.You can keep your own pregnancy blog easily on ThinkBaby, and even link it up to you photos in the gallery. So why not start or update your own? Other weeks 1-4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19

, but instead remain quite pliable and won’t fuse together until some time after birth so that there is more flexibility in the head to make birthing easier.The fat that your baby is putting on in these last weeks is changing his skin appearance from red

30-week fetus - Image courtesy of BabybondWant to see a bigger pic?Your baby now weighs nearly 1.3 kg or 3lbs. The soft, fine early hair called lanugo that has been protecting your baby’s skin in the womb is beginning to disappear and she may now

Image of 23-week fetus courtesy of BabybondWant to see a bigger pic?Your baby is now about 26 centimetres long and weighs about 500 grammes or 1.1lbs. He’s rapidly bulking up now, with bone mass, muscle, organ growth and fat. His skin is wrinkled

Image of 12-week fetus courtesy of BabybondWant to see a bigger pic?Your baby will now be between 6.5 and 9cm long and weigh between 14 and 20 grammes. Her head now takes up about half the length of her body and from here on in will grow more slowly

development newsletters by email for every week of you pregnancy…Weeks 0-4: Approx 0.2mm longIt’s very early days, so you’ve probably got no idea that you’re pregnant, but there’s already plenty going on in there. Fertilisation occurs within a few days

would be done to slow it down or stop it. Your baby will start to lose her vernix coating by now, but will probably still have a little in the folds of her skin at birth.You might notice your baby having hiccoughs in the final stages of pregnancy