Weaning question

I’m a first time mom and can’t find much info/ clarity on my particular situation...

I was exclusively BF until 3 months when I returned to work. Since, my milk supply has dropped drastically and she’s on formula for about 2/3 of the day now. When I pump I only get 1/2oz each time.

My question is (as much as I don’t want to) if I stop breastfeeding her/ pumping, since my milk supply is so low, do I even have to necessarily “wean”? Would quitting cold turkey at this point have any health repercussions or concerns?