What is the most effective birth control pill? what is the least? can you get birth control without a parent’s convent if you are 16!

The most effective form of birth control is actually an IUD. All birth control is different, but an IUD is most effective. It just depends on what your menstrual cycle is like. I think if you're thinking about taking birth control, ask your parents about it so they can set up an appointment for you so a doctor can give you what would best work for you. I hope this helps!!