I've no idea what the plural of fetus is... however they both are, as of today. I guess 10 weeks is a magic number since all their organs are developed now and all they really have to do now is GROW!
This is the beginning of the so-called fetal period, a time when the tissues and organs in her body rapidly grow and mature. Her vital organs — the liver, kidney, intestines, brain, and lungs — are now in place and starting to function (although they'll continue to develop throughout your pregnancy). Her liver continues to make blood cells, and the yolk sac, which previously supplied these cells, is no longer needed and begins to disappear.
During the next three weeks, your baby's length will more than double to nearly 3 inches. Her head is proportionately smaller now than it was a few weeks ago, but it's still almost half the length of her entire body. Her forehead temporarily bulges with her developing brain and sits high on her head; it will later recede to give her a more human appearance. Each day, more minute details — including tiny fingernails, toenails, and peach-fuzz hair — start to appear on her body. Her fingers are now completely separated; her arms bend at the elbow and curve slightly; her hands are flexed at the wrist and meet over her heart; her legs are lengthening; and her feet may be long enough to meet in front of her body. She is busily swallowing amniotic fluid and kicking her legs.If you could take a peek at your baby this week, you'd be able to clearly see the outline of her spine through her parchment-thin skin. Spinal nerves are beginning to stretch out from her spinal cord.
Also, I seem to have a belly. I attribute this to the fact that, in a normal pregnancy the uterus should be about the size of a grapefruit. So with more than one in there, I would assume that the uterus would be bigger. I have not yet gained any weight though... Possibly a pound, as it's kind of difficult to tell on the scale. My eternal hope is that I won't end up at the same weight after I have the babies, which would get me a little lighter than my current standard weight.
I want brownies. That is all (love you all!).