An Active Pregnancy

I am a different person now than I was when I was pregnant with Trent. My first pregnancy was a giant hall pass. I ate pretty much what I wanted when I wanted; at first it was because I was pretty sick and thought something is better than nothing, and then later it was an excuse "I'm pregnant! I'll eat 1/2 a cheese cake if I want to!". I walked to and from work (the whole 2.5 blocks) and that was the extent of my exercise - and even then, at least a couple days a week my hubby swung by and picked me up anyways.
I vowed this time would be different. I've learned a lot of valuable lessons on fitness and nutrition from JDFT over the last couple of years. Namely, I learned to quit beating myself and keep up trucking: there is no such thing as failure, if you keep trying. I wanted to continue to 'compete' in hardcore classes, I wanted to knock out reps at Guns Guts & Butts, I wanted to still be part of the community that has become so important to me, long into my pregnancy. But things aren't really working out as I had hoped.
Almost from conception, I've been tired; bone wrenching exhausted. I've been sick; all day nausea and tossing my cookies multiple times a day. Those two symptoms combined have had my ass glued to the couch for the last 6ish weeks. And they both go hand-in-hand; I'm so tired all the time because I don't have enough fuel in me, the lower my blood sugar the sicker I feel/get.
I am hoping in the next couple of weeks these two symptoms will start to ease up and I can start slowly coming back to the gym. I know that getting exercise and eating right are two important things for this pregnancy to be a healthy (full term) one. My goal for this pregnancy is to be the big fat lady in class that people wonder if I'm going to go into labor at any moment.