Rose Marie,
I bet you the mom is making some milk especially with the breast changes she
has experienced.  She just might not be able to express it.  All the moms I
have worked with on induced lactation have made drops of milk by 2 to 3
weeks.  It will be hard for her to know how much she is making.  One mom I
worked with knew at one point she was making at least 1 ounce per feeding,
because when she would leave baby on occasion with dad, he always had to feed
baby 1 more ounce of ABM with bottle than mom did with tube device at breast.
 If mom absolutely has to know I guess you could have her do test weighs
before and after nursings with the really good computerized scales.  (We
can't live without these now--they really help us assess when moms and babes
need help)   Any increase in weight not accounted for by the ABM the baby
takes would be breastmilk.

Jane Bradshaw LLLL, RN, BSN, IBCLC
Private Practice