Interestingly enough, the original Hippocratic Oath specifically condemned both abortion AND using medicine as cover for immoral sex...
I swear by Apollo, Asclepius, Hygieia, and Panacea, and I take to witness all the gods, all the goddesses, to keep according to my ability and my judgment, the following Oath.
(Care for teachers, and their kids) To consider dear to me, as my parents, him who taught me this art; to live in common with him and, if necessary, to share my goods with him; To look upon his children as my own brothers, to teach them this art.
(Do good, and no harm) I will prescribe regimens for the good of my patients according to my ability and my judgment and never do harm to anyone.
(No euthanasia, no abortion) I will not give a lethal drug to anyone if I am asked, nor will I advise such a plan; and similarly I will not give a woman a pessary to cause an abortion.
But I will preserve the purity of my life and my arts.
(Won't do surgery--outside of my specialty) I will not cut for stone, even for patients in whom the disease is manifest; I will leave this operation to be performed by practitioners, specialists in this art.
(Won't engage in immoral sex with patients (note the homosexual prohibition)) In every house where I come I will enter only for the good of my patients, keeping myself far from all intentional ill-doing and all seduction and especially from the pleasures of love with women or with men, be they free or slaves.
(Trade secrets) All that may come to my knowledge in the exercise of my profession or in daily commerce with men, which ought not to be spread abroad, I will keep secret and will never reveal.
(Swearing the oath) If I keep this oath faithfully, may I enjoy my life and practice my art, respected by all men and in all times; but if I swerve from it or violate it, may the reverse be my lot.