Okay mama, sa 3 weeks old pwede na talaga magpacifier, pero maraming pediatricians ang sinasabi na better to wait until 4-6 weeks, especially if breastfeeding ka pa lang kasi baka ma-confuse ang baby sa latch, pero honestly, a few of us moms did introduce it earlier and okay lang naman, depende talaga sa baby! Best talaga to double-check with your pediatrician kung okay lang para sa baby mo specifically, lalo na kung may concerns siya sa feeding. Anyway, kung mag-pacifier ka, sanitized good quality pacifiers lang, at hindi dapat laging nasa mouth ha, para hindi ma-develop ang dependency.