Cats and newborns

Malinda • I am 32 married we have 3 live and one miscarried. 11 yrd old girl 10 yr old boy and 4 yr old boy and we misscarried at 11 wk 2 days on oct 9 ,2014
We have two cats what is guidelines with newborns and cats I can't remember I don't want to have to get rid of them please help