12 week dating scan happens
Most scans are carried out by specially trained staff called sonographers.
The procedure is carried out in a dimly lit room so the sonographer is able to get good images of your baby. You will then be asked to lower your skirt or trousers to your hips and raise your top to your chest.
Bear in mind that the scan's main purpose is to check that your baby is developing normally, rather than whether you're expecting a boy or girl.
Sometimes excess wind or having too much tummy fat obscures the view, so it’s hard to tell a baby's gender accurately.
As well as a developing skeleton, your baby’s organs and intestines are changing this week.
The kidneys are beginning to excrete urine into your baby’s bladder, while their intestines, which grow so fast at the beginning that they protrude into the umbilical cord, are moving back inside the abdominal cavity.
At 12 weeks pregnant your baby’s skeleton is currently made of cartilage (like you’d find in your nose or ear), but over the coming weeks this will harden into bone.
When your baby is born their skeleton is made up of over 300 parts of bone and cartilage, but they will only have 206 as an adult, as bones fuse together to form larger, stronger bones.
Excess saliva is one of pregnancy’s little surprises - it’s totally normal and probably caused by hormones. Around about now you’ll be offered an ultrasound scan - and your first chance to see a glimpse of the tiny life inside you!Random, we know - but some women find they’re more prone to nosebleeds during pregnancy. It’s known as the dating scan as the sonographer will be able to check whether your due date is accurate by measuring fetus size.Ask to have a copy of the picture of your baby from your scans. Even though you can’t feel it yet, your baby is moving, waving and dancing. Congratulations - you’ve made it through the gruelling first trimester. From now on, your baby is going to grow, grow, grow! The cartilage skeleton is beginning to turn into hard bone.
Your tiny baby is now a compact 6cm in length, and fully formed – the next stage of their development is to grow larger and practise sucking and breathing motions..