Combi fed baby refusing formula

[Krampers]

6 month old combination fed baby (formula and breast) suddenly is refusing bottle snd formula but doesn't really drink much more breast milk. I am a first time mum and this is really stressing me out as I never set myself up to exclusively breastfeed and I am worried about my supply. Pumping doesn't work for me as I barely get 2 ounces a session. Tried the sippy cup.

What about porridge etc?

Yes she eats porridge actually on the mornings

She probably doesn’t like formula. Just breast and introduce solids. I’m no expert. My kids are teens now but I had same and just introduced age appropriate food. They are healthy now.