WEEK 33: Filling up on amniotic fluid
By now, your baby will have swallowed lots of amniotic fluid – this forms meconium – their first poo. You might have a dark line on your tummy – this will disappear after birth.

33 weeks pregnant: Pregnancy tips and nutrition

In Pregnancy

    3-minutes read

    At a glance

    Start make a list of things to pack for the hospital

    You may be getting a line down the middle of your tummy – it’s known as the linea nigra


    You may get ‘practice’ Braxton Hicks contractions as your body prepares for birth

    Report any contractions to your midwife, just to check if they’re normal

    Your little resident is running our of space! Good thing baby is getting ready to come out soon.

    Baby's development at 33 weeks

    Your little resident is running out of space! Good thing baby is getting ready to come out soon.

    By this stage of the pregnancy, your little one has swallowed a lot of amniotic fluid. This causes the intestine to gradually fill with meconium, a thick, viscous greenish or blackish material made from the bits and bobs suspended in the amniotic liquid. This meconium will make up your baby’s first bowel movement at birth. Just in case you were wondering!

    Your body

    Have you got a funny line going down the front of your stomach? During the last trimester a line may form right down the middle of your tummy. This is known as the linea nigra, and it will become darker as pigmentation increases. It can be seen most clearly right after baby has been born. It will disappear completely a few weeks after birth.

    Now is a great time to start getting ready for the birth, so try and make a list of things to pack for the hospital.

    Check out our hospital checklist



    It is important for you and your baby to gain enough weight during pregnancy, but the amount of weight gain can vary from person to person. Only some of this weight gain is due to increased body fat (which is important to protect your baby and prepare for breastfeeding). Some of the weight gain is due to the weight of baby, the placenta, amniotic fluid, and the extra fluid in your bloodstream. All this weight gain is really important for the health of your baby, and the majority of weight gain occurs in the second and third trimesters. However, it is important that you do not gain too much weight during pregnancy as this can increase the risk of complications. If you have any concerns speak to your midwife.

    Pregnancy tips

    You’re about 8 months pregnant now, which is when many women report what feels like contractions. These are probably Braxton Hicks contractions, and they last about 30 seconds each. It is not labour starting early. It’s just your body’s smart way of training for the big day. These contractions are responsible for what is known as a ‘false labour’. But it’s a good idea to report any contractions to your doctor, if only for reassurance that everything’s fine.

    Watch this great NHS video about labour symptoms


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    Important advice to mothers

    The World Health Organisation (WHO) recommends exclusive breastfeeding for the first 6 months of life. SMA® Nutrition fully supports this and continued breastfeeding, along with the introduction of complementary foods as advised by your healthcare professional.