Effective toward what end?
Having kids when and only when you want them? Sure. "Only have sex when you want a kid" has always been an option.
Having kids when and only when you want them, and fulfilling your biological urges? Not so much.
I'm glad for you that your family planning worked for you and fulfilled your needs, but if you're going to extrapolate your experience to literally all humans throughout history, you aren't really in a position to be talking about other people's hubris.