No sex after having 1st baby

After having our first baby, me and my husband got intimate here and there but now, our son is about to be 11 month, my husband is not interested having sex. Now it’s like month and month, we don’t get intimate. It’s not like he’s cheating or anything, may be we both got busy! Any thought, how to bring back what we used to have??🤦🏽‍♀️