Hey L.!
My little girl will be 10 mos tomorrow (Wed.) and I nurse her. She's never wanted to take a bottle but like your daughter, she takes a sippy cup (filled with only water). She doesn't eat much variety in foods either b/c she sometimes doesn't want solid foods (but she loves her cheerios, finger food & sweet potatoes and avacado are favorite foods too)
She loves to nurse too (but at times she doesn't nurse well b/c she's so interested in other things) I've actually been wondering when & how I'm going to go about weaning her as well. I will probably continue to nurse her through the winter months to help cut down on sickness. And I'll probably let it be more her idea to tapper herself off the breast.
I'm not pregnant like you but I do understand your need and want for her to wean. I understand your frustration in her not wanting to eat other food and just wanting to nurse. Nursing is very demanding, especially when they won't take a bottle to give us a break, huh? :) I completely understand.
I'm sorry that I can't help much with suggestions ... maybe just keep doing what you're doing - keep offering her food, maybe even a little before you nurse. Like you said, she may be holding out to nurse so you may want to try offering her only food and her sippy cup & don't nurse for that session. Just try it to see how it goes. I've read that solid food isn't as important for them as BREAST MILK or FORMULA so I wouldn't worry too much. Just take one day at a time. Good luck!! And CONGRATULATIONS on your pregnancy!!! :)