It just occurred to me – this is such a legalistic discussion?
The government allows for religious freedom & I’m not about to advocate stepping into the bedrooms of America with an inquisition looking for spent condom wrappers.
This country was built by enlightened men not theocratic zealots.
We’re better off trying to win hearts and minds with issues like sex outside of marriage and so forth.
Frankly there is no difference – Biblically speaking between the “Roman rhythm method” and using contraception. It’s still sex with an intent to not be fruitful and multiply. This is the personal choice of individuals.