Any estrogens in any amount may significantly decrease milk supply.
Increasing feeding frequency will not change this.  It does not always
happen, but it happens often enough to contraindicate estrogens for
breastfeeding mothers, unless there is absolutely no other option (and
this is rarely so for birth control).

I am afraid I have to say this md feels that that md is abusing the
power that the md after his name gives him.  It is also treating this
mother as an idiot to say there are no other options.

Jack Newman, MD, FRCPC