Your baby is now officially an embryo and is about the size of a poppy seed.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/4-weeks-pregnant/ for more information.
Local Maternity and Neonatal System
View navigation
After the birth
Would you like to share your recent experience of maternity and neonatal care in Humber and North Yorkshire? We are looking for stories and photos from local mums, partners or supporting families who have accessed our maternity services. Please make sure you have the permission of those involved before sharing.
If you are interested, please contact the Humber and North Yorkshire Local Maternity and Neonatal System by sending an email to hny.lms@nhs.net.
'I attended for my 20 week scan today very nervous (due to Covid-19 there are understandable measures in place which means you have to be alone) however from walking through the door all the staff are very helpful and caring.
There were two women doing the checks at the front who were both so lovely which instantly made me feel at ease.
The lady who did my scan was amazing! The baby is a wriggler and was in awkward positions but the lady persisted to reassure me she was all okay.... She made me feel so much better
I can't thank all the staff enough for still going to work everyday during these times and yet more caring than ever.
I've wrote this to thank them ♥️ and to reassure others that going alone isn't as scary as I thought it would be.'
Your baby is now officially an embryo and is about the size of a poppy seed.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/4-weeks-pregnant/ for more information.
Your baby is now the size of a kidney bean and weighs 1g.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/8-weeks-pregnant/ for more information.
Welcome to the second trimester!
Your baby is about the size of a small lime and weighs approximately 14g.
You have hopefully seen your midwife for your 'booking in' appointment, if you have not yet seen a midwife please make an appointment quickly, so you can have all of your choices about screening tests explained and offered to you.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/12-weeks-pregnant/ for more information. You can also link to the 'Pregnancy Journey' area here.
Your baby is about the size of an avocado and weighs approximately 100g.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/16-weeks-pregnant/ for more information.
Your baby has grown in length and is now the length of a small banana and weighs approximately 300g. Around this time you will be offered your '20 week' scan, also known as the 'anatomy' or 'anomaly' scan.Click here for more information about screening.
This is a also a good time to talk and sing to your bump as your baby can now hear sounds. This is great way for you and your partner/family to bond with your baby.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/20-weeks-pregnant/ for more information.
Your baby has grown again to the approximate length of an ear of sweetcorn and weighs about 600g.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/24-weeks-pregnant/ for more information.
Welcome to the third trimester!
Your baby is now approximately the weight of an aubergine; about 1kg and approximately 37cm in length.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/28-weeks-pregnant/ for more information.
Your baby now weighs approximately the same as a coconut; around 1.5kg.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/32-weeks-pregnant/ for more information.
Your baby is now around the same size as a lettuce, approximately 47cm long and weighs around 2.6kg.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/36-weeks-pregnant/ for more information.
Your baby is now the weight of a small watermelon which is approximately 3.3kg and around 50cm in length.
Please visit www.nhs.uk/conditions/pregnancy-and-baby/40-weeks-pregnant/ for more information.