Should I buy one?

I'm 14 and obviously a virgin and I also haven't used a tampon before. Lately I've been thinking about getting a menstrual cup because it seems a lot easier. I'm a bit worried and have a few questions. Does it hurt? How do I know what size to get? Can u wear it horse back riding (I ride)? Can you feel it? Tips for getting my parents to buy me one. Please comment the pros and cons, thanks heaps!

What brands do you recommend?