Daddy or in laws can help to take care of your 19 months old. Daddy, you can ease your wife's burden by letting your first kid (#1) get used to having less attention from mommy and more attention from you or his grandpa/grandma. Whether it be showering or sending #1 to sleep, give everyone some time to get used to a new routine with minimal involvement from mommy. This is so that when your second baby comes along, mommy can focus on attending the baby and your #1 will not feel too left out as he has already get used to his new routine with daddy, grandma and grandpa.