Your baby is gaining weight fast and now weighs in at around 750g, around 1.6lbs, measuring around 35 centimetres. Spinal growth and strengthening is continuing this week. His lungs have begun to develop air sacs and now produce surfactant, a fatty-protein substance that prevents lung tissue from sticking together and so will help the air sacs to inflate.
But the big news this week are the eyes. Your baby’s retinas are now developing and sometime around now he will open his eyes for the first time and start to blink. His eyes are developing the colour they will be at birth which, depending on ethnicity, will either be blue or brown. Babies born with blue eyes may develop a different eye colour after a few months. This is also the time when brain wave activity starts for baby’s eyes and ears.
What’s happening with Mum?
As your uterus expands you are more likely to be aware of what’s called Braxton Hicks contractions, when your uterus tightens and relaxes, feeling a little like mild menstrual cramps. These are perfectly normal and nothing to be worried about, your uterus has been contracting at irregular intervals throughout pregnancy to prepare it for the real thing later. If however the cramps come at regular intervals or are painful then you should call your midwife or doctor right away as you could be experiencing premature labour.
Antenatal classes should start around this time, if you haven't already got yourself onto a class then there's no time to lose.
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 pains - I'm 6 and half months pregnant and keep getting really bad aches in my groin, especially when i've been sitting down for too long. It feels a bit like i've been kneed in the groin at times. Has any one else had this problem and know what is causing it? I didn't have this problem in my first pregnancy. Asks Delly, find out what other ThinkBaby members have to say on the forum.
If you've got experiences of your own to add then why not share them with other ThinkBaby members in the pregnancy or birth folders?
Getting through a rough patch - Anti-D injection. Beginning to feel better, slowly, although Mum having to look after Will a lot. Easter weekend a bit of a night off as feeling exhausted and the cough – and resulting incontinence and pulled stomach ligament – really made me feel rotten. Blogs Isabelle on week 26. It's not too late if you want to start your own blog.
Antenatal classes - Antenatal classes usually start around this time, so if you haven't already sorted yourself out a course here's the how and why.
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