The word "doula" comes from the ancient Greek meaning "a woman who serves" and is now used to refer to a trained and experienced professional who provides continuous physical, emotional and informational support to the mother and her partner before, during and just after birth; or who provides emotional and practical support during the postpartum period. Studies have shown that when Doulas attend birth, labors are shorter with fewer complications, babies are healthier and they breastfeed more easily.
To find a doula for your birth or postpartum and for lactation help, check out Birthing Gently. The presence of any person at your birth should be a comforting fit. Take a few mintues to read the bios of the many doulas at Birthing Gently to see who might resonate with you.