(cheerful music)
- This week marks the end
of the second trimester,
which means you're two thirds
of the way there, mama.
But you're not the only
one who's come a long way.
Your baby has, too.
Now tipping the scales at over two pounds,
your wonderful work in progress
has doubled in weight in the past month.
Better her than you, right?
What's new in the height department?
Actually, a whole lot,
including how that height is calculated.
Those crown to rump measurements
are now officially being traded in for
the easier to picture
head to heel measurement.
So how tall is your ever bigger baby bun
at the dawning of the third trimester?
A full 15 inches.
More than a foot long.
What's on baby's menu these days?
Lots and lots of amniotic fluid,
which your little gourmand
ingests in large quantities.
Around a pint of amniotic fluid
passes through baby's
digestive system per day
into her now fully functioning kidneys
and back out into the
amniotic fluid as urine.
And this ingestion excretion cycle
happens every three hours.
The amniotic fluid also serves
as a two-way radio thanks to
the conductivity of fluid.
You already know that your little listener
can hear your voices, but
it goes the other way too.
If your partner patiently
presses his ear to your belly,
he may be able to hear that
most precious sound of all:
the thumpity-thump of your
little one's heartbeat.
(cheerful music)
