“I am curious, is the “Rhythm Method” a form of birth control, or not? “
Yes sireee Bob.
So’s abstinence.
I don’t know why people post stuff like this.
Bizarre.
The idea of "the rhythm method" is to reserve intercourse for naturally infertile periods.
This is different in principle from artificial means of induced sterility, a.k.a., "birth control," akin to the difference between fasting and bulimia.
But there can be a similarity in intention, if couples are avoiding pregnancy for selfish reasons. IOW, natural methods of avoiding pregnancy (not including withdrawal, which is akin to bulimia) are reserved for grave circumstances and hardships, which have to be considered on a case-by-case basis.
Artificial means of induced sterility, OTOH, are intrinsically immoral, like bulimia.