

Just 4 weeks after conception, eyes and ears are developing fast, as is the tiny beating heart.

By the end of the 8th week, your baby will be about 3cm and weigh about 3g (that's less than a teaspoonful of sugar!). The brain will be alert and active.

At 12 weeks, he or she weighs about 15g and is around 6cm long (babies in the womb are usually measured from the top of the head - the ‘crown' - to the rump - not from head to toe).
"You can't see me or feel me yet, but I am already moving and waving my arms and legs. I can wrinkle my forehead and twitch my lips. I can suck my thumb too!"

By 16 weeks your baby is already almost completely developed. He or she can sense light and tell the difference between bitter and sweet substances in the amniotic fluid.

Despite being only 16cm long and weighing only about 340g, your baby would stand a chance of surviving outside the womb. The following four weeks will see a doubling in weight. The baby's eyes will open and close and the first teeth have formed in the gums.
Babies in the womb share your stress and upset, but will also be soothed by harmonious conversation and music.

A time of rapid growth, your baby at 29 weeks is likely to be around 26cm long and weigh 1.1kg. Limbs are starting to fill out, the lungs are maturing quickly. Your baby can recognise your voice and has developed a sleeping and waking pattern.
Have you thought about writing a birth plan? Register with the HiPP Baby Club and download your personal plan today! Use it to put forward your wishes for what you would like to happen during your labour and after the birth. Don't forget you can also download your handy hospital and baby checklist to help you get prepared.

By 34 weeks, your baby's lungs are still maturing. Your baby can sense changes in light through your tummy, and can also recognise your voice (and your partners too). Your baby's immune system is developing and you might notice he regularly hiccups!

37-42 weeks is full term and normally only around 5% of babies arrive by 40 weeks.
Coming up to 40 weeks and this little baby is ready to meet the world! Even the tiny finger and toenails are fully formed. The baby will be practising sucking and swallowing, blinking, grasping and breathing. He or she puts on weight fast, with fat stores being laid down under the skin. And although the movements may change you should still notice at least 10 in 10 hours. The head usually engages although sometimes it might not until labour begins. You're almost there!
For a more detailed week by week guide to your pregnancy including the development of your growing baby, visit our pregnancy calendar - personalised to your stage of pregnancy when signed into the HiPP Baby Club.

Going into labour isn't usually dramatic! Common warning signs:
You can add an entry to your Baby Space by selecting either the 'Add Entry' button on your homepage or the top-level navigation (please note you must be a member and signed in to access 'Baby Space')
Once in Baby Space you can select 'Add New Entry' from either 'Calendar View' or 'Baby Space' view. To access the Baby Space functionality you will need to have registered with HiPP Baby Club and be signed in. Please click here if you are not registered.
There are two ways to upload an image. You can either upload an image to 'Galley' which you can access by clicking 'Baby Space', located in the top level navigation.
Or you can upload an image to a Baby Space entry. See 'How to add a Baby Space entry'.
To access the Gallery/Baby Space functionality you will need to have registered with HiPP Baby Club and signed in. Please click here if you are not registered.
You can post to a forum by clicking ‘HiPP Chat’ in the top-level navigation.
Select the topic you would like to add a post to and click ‘post new topic’. For further questions relating to HiPP Chat please click here.
To post within the chat forum you will need to have registered with HiPP Baby Club. Please click here if you are not registered.
You can become a member of the HiPP Baby Club by clicking the ‘Join Now!’ button located on the ‘Home’ page. The ‘Home’ page can be accessed by clicking ‘Home’ in the top-level navigation
or if you wish to register now please click here.
Once signed into the Club, you can invite guests to view your Baby Space and Gallery by clicking on 'My Profile', located at the top of the page and then the 'add Guests' tab. Guests need to have an email address in order to view your Baby Space pages.
Go into ‘My Profile’, which is located in the top right hand corner of any HiPP Baby Club page and from within there you can amend your Account Details.
Go into ‘My Profile’ which is located in the top right hand corner of any HiPP Baby Club page and select ‘Mailings’. Un-tick the box next to the mailings you wish to opt out of. Then click ‘save my changes’ to record the change.
To report a site error you will need to send an email to administrator@hippbabyclub.co.uk with a description of the error you received and what you were doing when you received the error.
If there is some content that you think is inappropriate in the HiPP Chat forums please send an email to administrator@hippbabyclub.co.uk with the category name, topic name and the users chat name.
Thank you for helping to keep HiPP Baby Club an enjoyable place to be!
Select 'my profile' at the top of your club page. Select the 'guests' tab. You can delete a guest or guests by clicking 'delete this guest'. This will mean that they can no longer view your Baby Space or photos.
Select 'my profile' at the top of your club page. Select the 'guests' tab. You can then delete yourself from viewing this member's Baby Space. This will mean you can no longer view their Baby Space or photos and their guest status will disappear from your Baby Space list.