I'm sorry these took so long to scan, upload and post!
It's no longer a real secret anywhere that we're expecting now since my stomach resembles more of a beach ball with neighboring casabas.
Ladies: if you've never been pregnant before, I don't want to tell you the scary things your body and it's functions are capable of while it is busy creating a miracle. Don't misunderstand. I'm definitely not complaining but I am fully acknowledging (and remembering) once again the uniqueness pregnancy brings to a woman's body.
Below are ultrasounds from 5 weeks and 5 days to 13 weeks and 2 days (based on my current due date of February 13, 2011) shown from oldest to newest.
5 WEEKS and 5 DAYS
FUN FACTS (taken from The Bump and Baby Zone): Baby's now the size of an appleseed! My embryo, which doesn't look like much more than a tadpole right now, is actually starting to form major organs (heart, kidney, liver, stomach) and systems (nervous, circulatory, digestive). Baby's presence in your uterus triggers production of HCG (hormone detected by pregnancy tests), which triggers the production of other hormones like estrogen and progesterone, which triggers all those great symptoms I've been noticing!This week, the baby begins to form a "C" shape - with the beginnings of a head on top curving into what will become legs later. A tube visibly outlines the "C". This tube will eventually become part of the baby's brain and spinal cord. In the middle of the "C" the beginnings of my baby's heart are taking shape.
The embryo is about 1/10 of an inch or 1.5 to 3 mm.
6 WEEKS and 5 DAYS
Fun Facts (taken from The Bump & Baby Zone):
Baby's now the size of a blueberry! Baby's brain - both hemispheres! 0 is growing fast, generating about one hundred new cells every minute. Arms and legs are emerging as joints start to form and a permanent set of kidneys (baby's third!) is now is place.
Baby has been busy this week! The brain is continuing to develop. The circulatory system becomes more complex as lungs begin to form.
Face is taking shape with eyes showing some pigmentation, visible ear holes, minuscule nostrils and an indentation where the mouth will appear. The digestive system and stomach are starting to form. Arms and legs are growing but fingers and toes have not yet developed.
12 WEEKS and 1 DAY
FUN FACTS (taken from The Bump and Baby Zone): Baby's now the size of a plum! As I move into the second trimester, baby shifts into the growth and maturation stage. After weeks in the critical development stage, almost all of baby's systems are fully formed.
The end of the first trimester marks an important step for baby. All of the major body systems are in place. In the digestive system, the small intestine is no longer entwined with the umbilical cord but instead is neatly tucked within the abdomen. The nervous system continues to develop and the brain's structure is fully formed.
Many of the organs are starting to work on their own too. For instance, the thyroid begins to secrete hormones. Next week, baby will no longer be considered an embryo but instead graduates into a fetus. Baby even has tiny fingernails.
At 12 weeks, baby weighs in around 1.5 ounces and measures about 3 inches in length from crown to rump. 
Baby's genitals will start showing signs of being either male or female soon. Baby may also be sucking as early as this week and his/her kidneys may even be producing urine.
Around this time, I invested in a maternity/pregnancy pillow as sleeping through the night already started to become a thing of the past. Originally, I used the Snoogle but now that I've been accustomed to using my Tempurpedic Neck Pillow (this isn't an infomercial), the Snoogle is now out. However, I discovered that trying to find a decent pillow for back and belly was extremely challenging. I eventually settled on something I don't even now currently use. I've ended up using regular standard pillows to create a midsection bumper.
13 WEEKS and 2 DAYS
FUN FACTS (taken from The Bump and Baby Zone): Baby's now the size of a peach! Baby is forming teeth and vocal cords...savor this, their nonfunctional phase. Baby is approaching normal proportions with the head now only one third the size of the body. The intestines are in the process of moving from the umbilical cord to baby's tummy - much more convenient.
Week 13 marks the beginning of the 2nd trimester! It is widely recognized as pregnancy's most comfortable and enjoyable (it's all relative). 
Hooray! Say goodbye to morning sickness! Second trimester brings relief and reality.
This week marks a milestone for baby. Developmentally speaking, the baby is no longer an embryo but a fetus. The baby appears to be resting because the eyelids have formed and are fused together but the arms and legs move and twitch. Baby can suck their thumb too!
Look at these pictures ... already looks like this baby has thumb sucking down!
Baby is about .5 to .7 ounces and is getting longer at about 3 inches long from crown to rump.
Fingerprints have formed on baby's tiny fingertips, veins and organs are clearly visible through the still-thin skin and the body is starting to catch up with the head.
If this is a girl, she now has more than 2 million eggs in her ovaries.
I have another appointment next Friday that will hopefully reveal the gender!
Yes, we're definitely finding out!! But we're keeping the news a surprise until our shower :) so we're anxious to know if you think it will be a boy or a girl. Ken flip flops in his attempt to win our bet (foot rub if I win ... probably Korean BBQ if he wins - GAH!).
TODAY, I am 16 weeks and 6 days (officially 17 weeks tomorrow).
According to The Bump, baby is now the size of an onion. The skeleton is hardening, changing from rubbery cartilage to bone and fat is finally accumulating around it. The umbilical cord is getting thicker and stronger.
Around this time, baby's ears pop from the head and can now sense sounds. After all, baby has plenty to listen to in utero! The baby is accustomed to the strong beating of my heart, blood rushing through my veins and my stomach grumbling. The baby can also discern sounds outside the uterus like my voice and music.
This week, the little one weighs in at about 5 ounces and stretches to just over 5 inches crown to rump.
I'm assuming at this point, most of my co-workers have either guessed or assume that I'm pregnant. I've made no formal announcement to anyone other than my boss. In any case, if not being able to fit into ANY of my pre-pregger pants isn't a clue that I'm showing more now, then I should be accused of being in denial! Last week, I finally broke down and bought a few maternity pieces that should hopefully last.
New ultrasound photos to be posted next week! Stay tuned!!
In the meantime, we're curious to hear your gender guesses and suggestions for baby registry (yes, I've already begun thinking about that).
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