Great points. I think it's also important to consider the statistics when you combine multiple approaches to contraception. It may not be a good idea to solely

Great points. I think it's also important to consider the statistics when you combine multiple approaches to contraception. It may not be a good idea to solely rely on natural methods, but natural methods can be combined with other contraceptives to yield a much, much greater effectiveness than most contraceptives can provide by themselves. Since failure rates are typically stated as odds of getting pregnant within an entire year of usage, combining two methods that each have only 90% effectiveness can potentially yield an extremely high level of effectiveness: it's already unlikely that both methods will fail in the same year, but when you consider that both have to fail at the same time in the same year then the odds start to look pretty good, despite neither method being that great on its own.