Utility is an economic term for a person's overall well-being and satisfaction. Consumers play a role in the economy by maximizing utility, which means allocating their scarce resources, such as limited time or money, most efficiently. Utility maximization is different for every person.
You can start using it right away but it was suggested to us by our midwives to hold off until 6 weeks as pacifier use can mess with their breastfeeding latch (it's a different kind of sucking).
You may feed your baby, burp her, change her diaper and cuddle her -- and find that she still won't stop crying. When nothing else works, offering a pacifier can help calm a distressed baby. If you want to use a pacifier to soothe your newborn, following a few tips can help you choose the right time to introduce it.