DS is 12.5 months and we are still breastfeeding. Although I pumped at work, I wasn't able to produce enough to cover daycare, so I'd send 2 bottles of formula and 1 bottle of breastmilk to daycare. When DS turned 11.5 months we transitioned him from formula to cow's milk. Since then I've sent only cow's milk to daycare (no BM - I've stopped pumping, hooray!) and nurse in the morning/night and on weekends.
My question is: does DS need cow's milk everyday? On weekends and days off I've only been nursing him and not giving him cow's milk. Is that alright?