Well, I'm well into my second trimester (17 weeks exactly) and I feel great! This is the best trimester because usually the morning sickness goes away and you get your appetite back! Now, some people never lose their appetite and never get sick. Those are the ones who glow the entire pregnancy =)
For me... I usually have a pretty difficult 1st trimester so the 2nd trimester is a nice break. This pregnancy, however, my first trimester nausea was not so bad therefore I did not notice as big a difference.
This is also the trimester where some people describe a "burst of energy". For me, the extreme fatigue that I had during the 1st trimester is lessened.. so I feel more energetic than before but I'm not sure if I'd describe myself as being really energetic. At least I feel like I can do a few things now after dinner whereas previously, I just wanted to hit the sack!
This is the best trimester because pretty soon, the belly will get so large that it will be uncomfortable to move around and uncomfortable to sleep! I better sleep when I can because finally my younger daughter is sleeping through the night. So I may get 5-6 months of relatively uninterrupted sleep before #3 is born! (Anytime there is a sickness and throwing up is involved... sleep goes out the window again)
Well... in a couple of weeks we may find out if we're having a boy or a girl. The second trimester ultrasound scheduled around 18-20 weeks is when you can find out. So... we'll see...