Good.
As per St. Augustine:
You can stop right there, Doc. Saint Augustine is not to be confused with Scripture.
Keeping that in mind will make your discussions with Orthodox go much smoother.
Ok, wise guy ;-)
That was Saint Augustine's explanation of Genesis 38, which was held throughout Christianity up till the Anglicans caved in 1930, followed within decades by the rest of Protestantism and finally the Orthodox.
I have yet to see a valid reason for Orthodoxy's "new consensus" on this issue, given their historical universal condemnation of contraception in union with Saint Augustine's views of scripture, i.e. Genesis 38.