N.S.
Is there some reason why you are rushing to wean? If you are giving him a combo of cow's milk and breast milk, there is no harm (in fact many benefits, as you know) to continuing the nursing when you're around. Maybe you should consider letting your lil' one self-wean. When they are ready they let you know. Good luck whatever you choose to do. I'm sure you'll make the best choice for you and your child.