13 weeks

The morning sickness has not magically gone away. Today was actually one of the worst mornings yet. Here's hoping the days are going to get better in the next few days.

Here's some info on how things are at 13 weeks...
http://parenting.ivillage.com/pregnancy/0,,nc26-11,00.html

WHAT'S HAPPENING WITH YOU
The second trimester is sometimes referred to as the "honeymoon of pregnancy." This is because women often regain energy, with much of the arduous work of organ development now almost complete.
As you enter your second trimester, your nausea most likely has faded into a memory. (If you had to stop taking prenatal vitamins during this time, you should begin to take them again as soon as possible.)
You may feel absolutely wonderful. You aren't yet subject to the physical discomforts that may appear in the later weeks of pregnancy and you may finally feel ready to reveal your long-held secret to the world.

WHAT'S HAPPENING WITH YOUR BABY
Measuring in at about seven centimeters crown-to-rump and weighing about two ounces, your baby-to-be will spend the rest of the pregnancy concentrating on growing and becoming strong enough to live outside the uterus. Your baby's intestines have now moved from outside the body to inside the abdomen. While your baby won't be saying "Mommy" for some time, vocal cords are now developing. Your fetus also has developed many reflexes and will squirm inside of you if your abdomen is prodded.


http://www.babiesonline.com/pregnancy/week-by-week/week13.asp
Your Baby:
There is a lot going on with your baby this week. Your baby's intestines are migrating from the umbilical cord into his or her abdomen. The villi are also forming in the intestines, and these help in peristaltic movements and digestion. The liver begins to secrete bile and the pancreas is even secreting insulin! All twenty teeth have formed and are waiting under the gums, while your baby has begun to practice swallowing by taking in the surrounding amniotic fluid and pass it back in his urine. Your baby can smile and his vocal cords are quickly developing, too. He looks more and more human as his eyes move closer together and the ears are beginning to move to what will be their normal positions. Your baby weighs between approximately 13 and 20 grams (½ and ¾ ounce) and is approximately 2½ to 3 inches long. The placenta and baby are about the same weight now.
This week marks the end of the embryonic period. Most of the vital systems are developed now, and baby starts really growing, at times, growing as much as an inch this week.

http://www.babiesonline.com/pregnancy/week-by-week/week13.asp
How your baby's growing:Your belly may soon be big enough to announce to the world that you're expecting, but your baby is still tiny. In fact, he's only about 3 inches long crown to rump — roughly the size of a jumbo shrimp — and weighs just about an ounce. Despite the small proportions, there's a fully formed baby inside your womb now. Much more proportional than it was a few weeks ago, his head is now only about a third the size of his body. His tiny, unique fingerprints are already in place. His kidneys and urinary tract are functional, and he's starting to urinate out the amniotic fluid he's been swallowing. As you start your second trimester, most of your baby's critical development will be completed, and your odds of miscarriage will drop considerably.