9 month old: Nursing Strike

My daughter will be 9 months old next week & has been on a nursing strike for the past week or so. I have been constantly trying to get her to latch but she really isn't interested. Before, I would nurse her before work, she'd have 3 bottles while I'm away & then I'd nurse her 1-2 times more before bed. Now she literally will only take 5-6 bottles all day. She has slept through the night since she was about 3 months so I'm wondering if she is weaning herself as she also has 2-3 solid meals as well. Do I need to pump more than 6 times a day to maintain my supply if she chooses not to nurse again?! I want to make it to a year without having to supplement so I'm trying not to lose hope! Any suggestions? Thank you!!