Is it okay for my baby to use a pacifier if I breastfeed?

Yes. Sure a pacifer in the early stages of infancy can reduce the stress of being' a newborn. After a few months, most babies use the pacifier more as a toy and no longer need it. Using a pacifier in infancy, can reduce some stress felt by the infantt and reduce some of the 'need' to nurse constantlywhich is sometimes an important emotional need but, sometimes it is a consequence of needing to incr milk.
Breastfeed + Paci. I have not seen problems with breastfeeding and pacifier use.