Mass after baby

Hey everyone! I am a devout Catholic and rarely miss mass (usually when a child is very sick and hubby is at work or I am extremely sick). I am due at Christmas with our rainbow baby. Our area gets affected by the flu horribly and with two kids in preschool I am paranoid about taking baby out until he receives his first vaccinations. When did you return to mass after having baby?

With my eldest I went the first Sunday and left her at home with dad, with my second she was in the NICU so I went every Sunday as well. This time my husband will be going through RCIA so he doesn't want to miss mass and would take the girls but I am not sure if I want to expose baby during flu season so early on.

What have you done?