Well, the pronoun thing is always a problem in this case, since I do know the ethiquette for IS pronoun I used the male one.
In fact, as I said, both doctor and parent went with their idea of the sex, the family by seemingly being very invested in the kid being male, and the doctor in the opposite.
I think the doctor knows the ovaries are functional and will work at puberty, if not, what he did is even worse (if that's even possible), leaving the kid with no sex hormones at all.
T and E compete in the body, like when a TS takes pills, and depending on how much the person is getting of each, one has more impact on phenotype.
I think that the testes production of T would have been hampered by E production with a resulting lower than normal T and E serum level in the body.