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Fetal development: Week 25

A growing spine

Posted: 27 May 2005
by ThinkBaby

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 air. Your baby's brain is busy developing her vision and hearing and her finger and toenails are growing steadily.

The complex structure of the spine is also developing: all 33 rings, 150 joints and 1,000 ligaments! Her skin is changing colour, taking on a pinky hue as the capillaries, tiny blood vessels, form beneath the skin.

What’s happening with Mum?
You’ve now got a football-sized uterus which is placing increasing pressure on your pelvis and back, making lower backache and pains in your legs more likely. If changing position or resting doesn’t help then try some gentle exercise or a soak in a warm, but not hot, bath. Adding aromatherapy oils or bath soaks may help relieve the pain.

If sugar is found in your urine during a routine test you may be asked to take a special glucose tolerance test to check whether you’ve developed gestational diabetes. Gestational diabetes is developed by only a very small number of women during pregnancy, when your body doesn’t produce enough insulin for both you and your baby. If you need a test you’ll usually be given a sweet drink and then have your blood sugar levels tested at regular intervals to see how they compare with the norm.

NB: All pregnancies are different and fetal growth rates vary, this is meant only as an approximate guide to development. If you have any concerns about your developing pregnancy then speak to your doctor.

Pregnancy experiences

Starting maternity leave? - Hi, Just wanting to get an idea as to when most of you stopped working (when pregnant)? I love my job and would ideally like to carry on with it as far down the road as possible (if I am physically able that is!)..but I also want to have enough time to get myself and the nursery organised before the baby arrives.. there's useful advice for Sophie on the forum.

You can join in the discussions and share pregnancy experiences and advice with other ThinkBaby members in the pregnancy folder.

Pregnancy discomforts - I so wish my nausea would take a running jump. To cap it all I am also getting regular nosebleeds and my gums bleed every time I brush my teeth. My midwife says that the nosebleeds are down to the high levels of oestrogen and progesterone whizzing around my body softening the cervix for childbirth and this can affect the mucus membranes in the nose. Writes Lucy in her pregnancy diary.

You can write your own pregnancy blog online with ThinkBaby, and update it as often as you like to share with family or keep as a personal record. You can also read what other mums-to-be are going through.

Other weeks

1-4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40

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Fetal development: Week 26
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Fetal development: Week 24

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