Monthly periods aren't truly natural. They're a product of our society. Women in many other cultures only get their periods every few months, having three or four periods a year. You can take birth control pills in a way (as instructed by your gynecologist; different types of bc pills have different instructions) so you can avoid your period for three or four months. It's not harmful, and comes with the same benefits as taking the Pill regular. I did it for a few years before age 35, and it was great...thinking of asking to do it again, if I can get a regular schedule so I can take them at the same time everyday.