Baomu for Expats?

Does anybody know about so-called baomu's?
Chinese often use this service, a baomu is a woman who takes care of the mother and the newborn baby and lives with the family during the first 30 days. They are educated in all one has to know about newborn babies.

We are looking for such a service, but as our Chinese is very limited, it would be great to find somebody with basic English knowledge concerning the terminology around this profession. We do not need somebody who can talk in English about buying fruits and vegetables, but if she knew some terms in her field, like "umbilical cord" or "breast milk", that would be very helpful.

Any ideas where we could find that special someone?

THANK YOU!