I do not have enough breastmilk and my baby is not latching also so giving her cow milk along with lactodex formula.is it fine?

A. No Definitely it is not fine because cows milk is not recommended to be introduced before the age of 52 to 54 weeks you cannot start it in the first month apart from that if you do not have sufficient breastfeed then also 1st to consult your paediatrician and then go ahead with whatever brand of formula they were suggesting you to go for