Luther is on the record condemning birth control; he specifically stated that Onans sin was wasting his seed. (Look it up; there was no question in Luthers mind about what the sin was.)
There is nothing on record anywhere by any non-Catholic Christian denominations that gives support to the practice of birth control; it wasnt until Lambeth in 1930 that it became accepted among non-Catholic Christian denominations.
(I mean, show me Im wrong.)