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Second
Trimester
Please keep in mind that
this information is approximate. Each pregnancy is different and
growth rates vary. If you have any questions, please check with your
care provider.
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Week 13
Right now he is
quite happy floating in the amniotic sac where he still has plenty
of room as he is just 2.5 - 3 inches long and weighs about
.5-.7 ounces. Now that the high-risk period is over, you probably
have some pregnancy announcements to make. That is, if you've been
able to keep the big news a secret.
Baby's face is now
starting to look like, well, a baby. The eyes move closer together,
and the ears move to the normal places. Baby's head which is
currently about half the length of the crown to rump measurement,
begins to slow down. By the time baby is born, his head will be
about 1/4 of the total length. This week, baby's intestines, which
have been developing outside the body in the umbilical cord, will be
drawn into the abdominal cavity.
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Week 14
Now at your
doctor's visit, ask to hear the baby's heartbeat. The ears are
shifting from the neck to the sides of the head, and the neck is
getting longer and chin more prominent. Facial features and unique
fingerprints are all there. Your baby is beginning to respond to
outside stimuli. If your abdomen is poked, the fetus will try to
wriggle away. Baby is still developing external genitalia, but its a
little easier to tell a boy from a girl at this point. Your skin and
muscles are starting to stretch to accommodate your growing baby.
You may notice some constipation because pregnancy hormones relax
the bowel. drinking plenty of fluids and eating lots of fruit and
vegetables, preferably raw.
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Week 15
Do you know your little
one is listening you. So play good music and talk carefully.
now measures about 4.1 to 4.5 inches from crown to rump and weighs
about 1.75 ounces. Its body is covered by an ultra fine hair, called
lanugo, which is usually shed by birth. He may even be sucking
his thumb by now. Don't worry mom you will get plenty of time to
deal with that habit. Your uterus is halfway between pubic bone and
belly button. These painless and random contractions can be thought
of as your body warming up for the big event of birth. If you have
more than five per hour, if they come at a steady pace, or if
they're accompanied by intense cramps or backaches, call the doctor.
Start learning to sleep on your left side because circulation is
best that way. Lying on your back or stomach after about the fourth
or fifth month can put extra pressure on your growing uterus and
decrease circulation to your baby. You can try tucking pillows
behind you and between your legs. Some manufacturers make a
pregnancy pillow that supports your entire body.
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Week 16
Month five has
begun! Time to start thinking about baby names! Your uterus has
grown significantly by now and weighs about 8.75 ounces. Arms and
legs are moving. The nervous system is functioning and muscles are
responding to stimulation from your baby's brain. Within the next
few weeks you may start to feel your baby move. It's often like a
gas bubble or fluttering movement like butterflies. As
it happens more regularly, you'll know it's your baby. There are
other physiological changes happening in your body. Increased blood
volume to support your growing fetus may produce nosebleeds, and leg
veins may become more apparent. Your uterus is shifting so you may
not have to urinate so much.
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Week 17
Well, you should
be able to identify movements this week, if you haven't already.
Your baby, now about in its 15th week of development, measures about
4.4 to 4.8 inches from crown to rump and has doubled in weight in
the last two weeks to about 3.5 ounces. Fat begins to form, helping
your baby's heat production and metabolism. The lungs are beginning
to exhale amniotic fluid, and the circulatory and urinary systems
are working. Hair on head, eyebrows and eyelashes is filling
in.
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Week 18
your baby is about 5.6 inches long and by the end of the week
will weigh about 5 ounces! This week you can be sure it is not just
your hyperactive imagination when your baby kicks or throws a few
punches as he begins to test his reflexes. It should be quite
hard-hitting as his arms and legs are quite well formed and he has
begun his most active phase. It can yawn, stretch and make facial
expressions, even frown. Taste buds are beginning to develop and can
distinguish sweet from bitter tastes. The baby will suck if its lips
are stroked and it can swallow, and even get the hiccups. The
retinas have become sensitive to light, so if a bright light is
shined on your abdomen, baby will probably move to shield its eyes.
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Week 19
The fetus is about 8 inches long, 8 ounces in weight, and covered
in vernix, a white, cheesy "cream" that protects her skin
from the long bath in amniotic fluid. Baby drinks up large amounts
of amniotic fluid and its his little kidneys are working. You guess
it right you baby can pee now. As your baby continues to grow, you
may be feeling some mid-pregnancy aches and pains like lower
abdominal achene's, dizziness, heartburn, constipation, leg cramps,
mild swelling of ankles and feet, and a backache. Dilated blood
vessels might cause tiny, temporary red marks (called spider nevi)
on your face, shoulders and arms.
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Week 20
Congratulations! You're at about the midpoint of your pregnancy.
Your baby weighs about 10 1/2 ounces now. She's also around 6 1/2
inches long from head to bottom, and about 10 inches from head to
heel. Your baby is swallowing more, which is good practice for her
digestive system. She's also producing meconium, a black, sticky
substance that's the result of cell loss, digestive secretion, and
swallowed amniotic fluid. This meconium will accumulate in her
bowels, and you'll see it in her first messy diaper. Your baby can
hear sounds by now. your voice, heart and your stomach
growling, as well as sounds outside your body. It will cover its
ears with its hands if a loud sound is made near you, and it may
even become startled and "jump." The baby is moving often,
too -- twisting, turning, wiggling, punching and kicking. signed up
for a childbirth class, it's a good idea to try and find one now.
They usually begin around your 28th - 30th week, and can fill up
quickly.
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Week 21
Your baby measures about
7.2 inches from crown to rump and weighs about 10.5 ounces. You are
probably showing now physically and emotionally. The fetus is
steadily gaining fat to keep warm. Growth rate is slowing down but
organ systems, like digestion, are continuing to mature. A waxy
film, called the vernix caseosa, is being produced by your baby's
oil glands and covers the skin to keep it supple in the amniotic
fluid. Buds for permanent teeth are beginning to form. You've
probably gained between 10 and 14 pounds by now. Good time to look
for childbirth classes.
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Week 22
Hooray hooray -- no more
morning sickness. Your baby measures about 7.6 inches and weighs
about 12.3 ounces. The muscles are getting stronger every week now,
and the eyelids and eyebrows are developed. Your baby's acrobatics
are pretty constant, and since he responds to sound, rhythm and
melody, you can try singing and talking to him. After he's born, the
same sounds will soothe him. If you are facing leg and foot
cramping, increase your intake of calcium and potassium. A glass of
milk before bedtime will help.
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Week 23
This is an exciting week for the father as he could attempt hearing his baby's heartbeat by putting his ear to your abdomen.
Your baby is about 8 inches from crown to rump and weighs almost 1
pound. The body is becoming proportioned more like a newborn, but
skin is still wrinkled because your baby still has more weight to
gain. Lanugo hair on the body sometimes turns darker. Your round
belly is definitely noticeable by now. Weight gain will be about 12
to 15 pounds. Vaginal secretions that are typically
clear-to-yellowish with a faint smell increase during pregnancy.
Check with your practitioner if the color or odor changes
significantly since it could signal an infection. As your skin
continues to stretch, it may become dry and itchy. Keeping it moist
with lotions or cream can help reduce these symptoms.
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Week 24
Your baby is almost completely formed. He is now between 1.25 and 1.5 pounds and is about a
8.4 inches long. He will continue to gain weight in muscles, developing organs and the deposit of brown fat.
It is starting to produce white blood cells, mostly for combating
disease and infection, and may respond to your touch or sounds. If
you haven't felt hiccups yet, you might feel some jerking motion now
but don't worry lot's of plenty of amniotic fluid to drink.
you will gain about a pound per week this month. Glucose screens for
detecting gestational diabetes are given between this week and 28
weeks.
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Week 25
The structures of your baby’s spine are beginning to form while the blood vessels of the lungs develop as well. Also, his nostrils are beginning to open. Your baby now has fully formed fingerprints and his bones are continuing to harden. If your baby were delivered now it would have a chance of surviving due to some great advances in medicine. The premature baby could survive in anincubator for few months. His taste buds are forming, and he may be developing a weakness for sweets.
baby now measures about 8.8 inches from crown to rump and weighs 1.5
pounds.
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