Your baby's growing steadily, having gained about 4 ounces since last week. That puts him at just over a pound. Since he's almost a foot long (picture an ear of corn),
he cuts a pretty lean figure at this point, but his body is filling out proportionally and he'll soon start to plump up. His brain is also growing quickly now, and his taste buds are continuing to develop. His lungs are developing "branches" of the respiratory "tree" as well as cells that produce surfactant, a substance that will help his air sacs inflate once he hits the outside world. His skin is still thin and translucent, but that will start to change soon. (From Baby Center)
MY UPDATE at 24 weeks (6 Months along):
I am still doing great. I had an OB check up and things were good. We measured right on track and I got to hear the baby's sweet heart beat. I love that. I asked the Doc about that pulling and pressure on the left side... again... he said it is most likely the round ligament that holds the uterus in place. As I lift things or strain (even just pushing and turning a heavy buggy at COSTCO) I am feeling that ligament pulling. He said I need to be careful of course, but that usually it gets better as the pregnancy continues because things tighten up. Good News! I hope so. At least now I will not worry because I know what 's going on in there. I am still nesting and cleaning and organizing and brainstorming everyday. I started to say to my husband, "maybe we could move the...." and before I could finish, he jumped in and said, "move the table in the hall way? move the Christmas decorations around in the attic?" and just started a list of ridiculous things to move... "move the washer and dryer up stairs?" etc... I can't help it. I'm nesting. I am feeling the need to get things in order. I am doing pre-Christmas prep because this baby will born the week before Thanksgiving. I am working on my first child's 2nd year scrapbook so that that will be DONE before the new baby arrives. I am even thinking ahead on the birth announcements... I told my husband I wanted to go ahead and get the envelopes so that I could address them now. He 's being really sweet about all of my nesting and he's grateful that I'm feeling SO motivated (if not slightly compulsive) about getting the house straightened up and cleaning out the basement to make a new play room for our BOYS!!! It's all happening FAST for sure.