I can tell you from personal experience that hormone based BC (like the pills or patch) do not get absorbed fully and therefore are not nearly as effective. I did get pregnant w/in a year of surgery while being on the pill. It all makes sense because we will never absorb anything (food or medicine) the same. A non hormonal BC is best. Please don't crush or break BC pills. That makes them 100% ineffective in anyone. You can't crush pills like that or most mess at all.