Unless you plan
to tandem-feed, nursing the newborn first, wean your toddler now to avoid its being a cause of sibling rivalry.
Wean to an open-mouthed cup. Limit milk & milk products to 16-21 oz./day. Juice is not needed. If 15 mos. or older, (s)he may resist weaning. Use bright-colored plastic cups; cut out a semicircle so his/her nose isn't inside the cup. If (s)he hasn't seen a pediatric dentist, it's time.