18 weeks = Can of Soup

Sorry for the late post. Between no work laptop and an afternoon of meetings on my telework day I didn't get a chance to do the update until now, after knitting class.

http://www.womenshealthcaretopics.com/pregnancy_week_18.htm
How Big is the Baby at 18 Weeks Pregnant?
By 18 weeks pregnant your baby is now anywhere from 5 to approximately 6 inches long at 18 weeks and weighs a little over 5 ounces! In case you are wondering that is about the size of a small can of soup!
Your Baby's Growth and Development
By pregnancy week 18 your baby's heart is developed enough to show some signs of defects. Ultrasound may be used to help detect any structural abnormalities that might exist. Most babies will be born without any congenital abnormalities. If an early ultrasound does detect something abnormal, you can plan ahead for any interventions or surgeries that may be necessary to support your newborn baby after birth.At pregnancy week 18 your baby is now starting to produce a protective covering along the nerves, called Myelin. This substance will be produced through the ninth month. By now your baby's genitals should be distinguishable, though you may not yet have the opportunity to view them at your health care practitioner's office.

http://www.babycentre.co.uk/pregnancy/fetaldevelopment/18weeks/
Your baby is approximately 6 inches/ 14.2 centimetres long from crown to rump and she weighs about 7 ounces/ 190 grams. Her chest moves up and down to mimic breathing but she's not taking in air, only amniotic fluid.A mid-pregnancy ultrasound scan is often done sometime in the second trimester (usually between 18 and 22 weeks) to assess fetal growth and development, screen for certain birth defects, check the placenta and umbilical cord and determine whether the gestational age is accurate. During this scan, you might see your baby kick, flex, reach, roll, or even suck her thumb. Bring your partner along, and whether or not he's able to accompany you, make sure you ask for printouts of the baby in various poses.

http://www.babiesonline.com/pregnancy/week-by-week/week18.asp
Your Baby:Your baby is growing rapidly. His bones are continuing to harden and the pads of his fingers and toes are formed. He even has his own set of fingerprints developing as well. Your baby is approximately 5.5 inches and weighs about 200 grams (7.5 ounces).Your baby can kick, swallow, and sleep. He also is developing his stomach, intestine and colon and the intestines collect meconium (the initial stool a baby will pass after birth). If the baby is a boy, the prostate will begin to develop this week as well. The skin is still a bit pink and transparent and his ears still stick out from his head. The four-chambered heart begins to build up muscle cells and is pumping between 25 and 30 quarts of blood per day.

http://parenting.ivillage.com/pregnancy/wkbywkguide/0,,c32s3v4x,00.html
WHAT'S HAPPENING WITH YOU You may be waiting anxiously for your baby's first movement, known as "quickening." You want to know that your baby, who's been quietly maneuvering around since seven weeks, is big enough and strong enough to send you a message. Many women find this barometer of their baby's well-being very reassuring. Typically, you will feel the first small rumblings of fetal movement between 18 and 22 weeks (or later, in some cases). If you have very strong abdominal muscles, you're very overweight or your fetus is "hiding," you may fall on the late end of the scale. If this is your first pregnancy, you may not feel fetal movement as early as you will in successive pregnancies. Most likely, though, junior will make his or her presence known within this next, exciting month. Early fetal movements may feel like soft tapping, or "butterflies," just above the pubic bone.
WHAT'S HAPPENING WITH YOUR BABY Your baby has grown to 14 centimeters crown to rump. Adding two ounces in just one week, your baby tips the scales at seven ounces. Baby's limbs are lengthening, and at last, body length is catching up to head size. Bones are still malleable but are beginning to ossify.

http://baby2see.com/development/week18.html
Week Eighteen: Baby begins to hearYou are 18 weeks pregnant. (fetal age 16 weeks)The fetus is now 6 inches long and weighs 7 ounces.The fetus measures about 15cm and weighs almost 200 grams.They can hear sounds and may be startled by loud noises.Recognizable active and rest periods.The skin is building a protective wax layer (vernix).Vernix (a white cheese like protective material) forms on baby's skin with the lanugo, a soft lightly pigmented hair covering the body and limbs, both help to protect your baby's skin during the months in water. Your baby may hear your heart beating, your stomach rumbling or blood moving through the umbilical cord. He or she may even be startled by loud noises.Tiny air sacs called alveoli begin to form in lungs and the vocal chords are formed. Baby goes through the motions of crying but without air doesn't make a sound; yet. Your baby may have the same awake and sleep patterns of a newborn. Baby will have a favorite position for sleep and recognizable active and rest periods.Your baby measures about 6 inches (15cm) crown to rump and weighs about 7 ounces (200gm).