The soccer star`s wife Victoria has been breastfeeding Harper Seven since she was born last month but now the fashion designer has started expressing milk so her spouse can assist with the baby more.
David said: "It so important that they have that mother-daughter bond and breastfeed, I think, is really an incredible thing.
"We`re in the process of putting it in bottles now, so that means I get to feed her - which has been amazing."
David, 36, also revealed their three older children, Brooklyn, 12, Romeo, eight, and six-year-old Cruz are enjoying having a younger sister and the couple are bringing their kids up to put family first.
He told People: "It`s just the way [Victoria and I] were brought up as kids; it`s the way we are bringing our kids up.
"We make sure that the most important thing to us is our family and we`re all grounded. No matter what goes on around us, no matter what situation it is, we come together as a family and we deal with it."