My baby girl was 2.6 kg at the time of birth and now at two month and 12 days she's 4.2 kg..Is it okay..??

A. It’s very good right now so you should not be worried about how your child is taking growth with whatever feed you are offering to the child currently seems like it’s very good and healthy for the child as a child should gain at least half a kilo kilogram in a month and your child is gaining more than that