ShutterstockThe moment you announce your pregnancy, one thing becomes clear: Everyone has an opinion on what’s “best” for the baby. “You shouldn’t be eating that.” “You need to breastfeed.” “You’re starting tummy time already?!” The saxophones will keep getting louder and louder—unless you learn to tune them out.But there is one benefit to all of the well-meaning yet unsolicited advice: You learn quickly what’s most important to you. While what’s “best for baby” looks different for every family, it’s always what makes you feel most confident, most calm, and most prepared for whatever comes nex...