I really think you will need a specialist to advise you, one who perhaps is familiar with off-label uses of the various hormones or protocols. I will say, simply taking estrogen does not inevitably produce enlarged breasts in every person who takes it, or every woman taking it for HRT would walk around with supersized breasts. More likely, it makes the breast region sensitive. Anyway, good luck to you, I assume you're going through therapy with a good counselor, ask him or her about finding a specialist to talk this question over with.