Lizzy,
Wow. I'm sooo sorry to hear about your mom. Big hug to you! They say that's the greatest loss a person can experience, so no wonder you're not feeling so hot or motivated. I feel for you, I lost my mom just before Christmas of 2005, we were really close and she went way too fast, gone in just 2 weeks.
I got pregnant a few months after that and I thought of it as a gift from her, some of her last words were that I was going to have a daughter. But I miscarried while on vacation and everything seemed so bleak and dark after that. Just a few months later my maternal grandmother died too...the sense of loss was overwhelming and I didn't feel like doing much at all. But I learned that I needed to grieve, cry, get it out...it took time but it really helped when I finally let myself feel the pain.
So, give yourself time to grieve your loss of your mom. Having a baby is a time when we reflect on our own mom and motherhood, and sometimes we draw closer to them, so you may be feeling it that much more. I know I miss mine terribly. :-( But now I'm pregnant with that daughter she predicted I'd have and it's a very happy reminder of her.
Also, it's not crazy or selfish that you're thinking about your exercise room too -- that's another big loss. It's something you've used to feel good about yourself and it's natural to be angry, sad, bummed out at the thought of losing it.
I'm sure you'll find a nice set-up and routine in the living room or elsewhere. It's definitely not the same but you'd be surprised what you can do in even a small 4X6 room!! And you'll be so happy to see your latest miracle sleeping in his or her new room, I'm sure the room will take on a whole new meaning.
Congratulations on your miracle baby - it's quite a story!! And maybe this one is a gift from your mom too!
Steph