Week 19 – 21

Standard

Catch up cont’ed…
Week 19 – the 2nd trimester!
Your vital stats: 6.5″ / 225-250g
At this stage, all of your development can be checked on an ultrasound scan including your brain, spine, stomach, bladder, kidneys, hands and feet (as you know – mum has already done this and you’re perfect in every way). If the books are right, you got a little more devious this week and started performing new tricks. As more of your nerves became covered in fatty ‘myelin’, the nervous system started to work more quickly and efficiently (myelin helps impulses flow smoothly along the nerve cells). As a result your movements may well have become stronger and more complex. You may have tried to grasp the umbilical cord or even sit cross-legged! Keep this up please as I really want daddy to feel you move soon.

The part of the brain that governs the senses developed greatly this week too. In fact, you may have started reacting more strongly to different tastes, touches and sounds. Although I can’t say for certain if you are at this stage yet, the books give a few examples… “Your baby may stop sucking if a bitter taste in the amniotic fluid is sensed… or kick vigorously if prodded through your bump”. I can tell you it’s true that you seem to calm down when daddy strokes you. I’m not sure how his touch differs to mine but I guess his hands are warmer and bigger. It’s this that usually settles you back to sleep after you’ve woken mummy in the night.

Apparantly braxton hicks can start any time from here on in (practice contractions)! That’s a little worrying!

Week 19
Week 19
Week 20 – Halfway there!
Your vital stats: 7″ / 310g
This was the week of our scan (see last post) so no pics needed as yours is the most perfect one on the web right now!
From here on in, your growth began to slow to allow for your lungs, digestive and immune system to mature. From a development point of view… your permanent teeth began growing behind your milk teeth, you can now recognise mummy’s incessant whining, and you started producing meconium (less said, the better I reckon as this is your poo). The nerve cells serving each of the senses began to develop ito the particular areas of the brain. The increase in number of nerve cells slowed but the complex connections required for the development of memory and thinking funtions began to form.
Other than that – the news is pretty scant to be honest!
Week 21
Your vital stats: 9″ / 350g
Although the umbilical cord is still your main source of nutrients, something new happened this week and your deveoping digestive system allowed small amounts of sugar to be absorbed from the amniotic fluid you regularly swallow (about 500ml in a 24 hour period). Also, although your red blood cells were most commonly produced by the liver and spleen, your bone marrow began to help with this too this week – all good news for when you enter our world.
Your heartbeat is also banging away now. A midwife no longer needs a doppler and you can you hear your heartbeat using a stethoscope. Your heartbeat is currently between 120-140 beats per minute – much faster than mine!
Again this seems to be a slow week so not a whole lot to report.
21 weeks!!!
21 weeks!!!
So there we are – all caught up. This has been an epic post so time to sign off and have a cuddle with Daddy. I promise to write some more this week xx
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