I'm in denial re: fatigue

OK, so before I got pregnant I was tired all the time and I needed to have a nap after work sometimes {all right, all right - a lot of times!} and lots of times my weekends were shot just trying to get rested. So that said,I read all sorts of things about how tired I'll be. Yep - and HOLY COW!!! I just somehow didn't think I'd be THAT tired, that it couldn't be too much worse than what I was going thru b4 the pregnancy. Oh I knew it'd happen, but I was just not prepared. Some days are better than others.Boy am I having a hard time w/ it. I have so much to get done and I just get/am worn out. My other problem is that I'm not being really talkative/descriptive to my hubby about the tiredness mostly because of my history. It's a sticky point for me.  I'm trying to save face I think and I just need to fully embrace the sleepy. Not doing well in that arena. It bums me out to know that about myself: that I'm trying to sort-of cover up or hide or some weird thing ; that I'm not completely honest w/ him about how I feel day to day. As if he wouldn't be understanding. Yeah, right - he's been absolutely super about everything. What do I really have to be worried about? It's all in my head. And even before - he knows how hard I work and it really takes a toll on me (THAT needs fixing, definitely -how taxing my work is on my brain/body even tho I sit at a computer for 8-9 hrs a day and commute 1 hr each way... that'll be another post.) And sometimes it's about food; I get home and am just super sleepy but have a snack and I'm a little better. I'm definitely better if I actually get a nap.I think I'd better get on the exercise bike and COMMIT to getting regular exercise. Why don't we do what we know is good for ourselves?