Consider breastfeeding baby
There are pacifiers that are designed for babies that are bottle feed, and there are some pacifiers that are known as the best pacifier for breastfed babies.
If your baby is still breastfeeding, then you should make sure that you don’t buy a pacifier that will not be perfect for your breastfeeding baby. This can confuse the baby and will risk that the baby will not suck on the breast anymore.
You can do some research online, or you can ask a qualified sales person, or your doctor for the pacifier that will work best for a breastfeeding baby.