After I breast feed for a couple months it is ok to feed milk?

No, you cannot give a baby cows milk uafter they are at least a year old. If you are planning on breast feeding for a couple of months, why not go longer? If it works, why change to something that isn't as good? Breastmilk is what is best for your baby. Formula is ok, but breast milk is best. If you have to go back to work you can pump. breastfeeding didn't work with my last baby and I pumped exclusively. By about six months in I had enough of an oversupply that I was able tto store enough to last until she was a year old. Sure, it was a bit more of a hassle than formula, but it was what was best for her.