Help!! Did baby wean himself?

My LO will be 10 months this next week. We have never really had any issue breastfeeding and using a bottle while I was gone. He took to a bottle just fine at 2 months and continued to nurse with no issue. All of a sudden yesterday he nursed when he woke up and then started to refuse and cry when I would try everytime after that. I am having to pump and give him a bottle. I don't respond well to pumping and I'm nervous im going to stop producing completely (I already only get~1oz on one side after 30 minutes pumping, been going on for a while). I really want to make it to a year!

TIA