(lighthearted music)
Even though your baby is still teensy,
just over six inches long and
about ten ounces in weight,
week 20 is huge. Why?
Well, for one thing, you're
halfway through your pregnancy
and baby is halfway ready to meet you.
This is also a big week
if you've been waiting
and waiting and waiting
to find out whether
that cantaloupe in your
belly is a sweet boy or girl.
The time has come for the big reveal
since a second-trimester ultrasound
can now deliver the definitive news.
Wanna keep playing the guessing game?
Make sure you tell your practitioner
and the ultrasound technician
that mum's the word
and that you'd rather they didn't spill
the baby gender beans.
If you're carrying a girl,
her external genitals
may not be as prominent as
a boy's. When are they ever?
But they are clearly
delineated at this age
and they're just the tip of the iceberg.
Inside your little girl's body is a
fully formed uterus in miniature.
Her tiny ovaries contain
the millions of eggs
she'll be born with, and her vagina
is beginning to hollow out.
If you're bearing a boy,
the evidence pops up
like a flag in a stiff
breeze on the ultrasound.
Even at this tender age, the family jewels
are there for all to admire,
well one of them anyway.
The testicles haven't
descended from the abdomen yet.
They're just waiting for the
scrotum to finish construction
so they'll have a home to
move into in just a few weeks.
Meanwhile, your baby
is starting the process
of plumping up as new fat
gets deposited under the skin.
Most of the fat is called brown fat,
and is designed to keep
your baby warm until your
little one's internal
temperature regulatory system
kicks into gear after birth.
The white fat, the kind
that'll really fill baby up,
and is responsible for
those pinchable cheeks
and roly poly thighs,
doesn't make it's appearance
in large quantities for a few more weeks,
which means baby will stay slender
and somewhat wrinkly for now.
(lighthearted music)
