Before commencing imagine yourself at 40 and see if you still think it will be cool. If so go for it if not stop at a size where it can grow back. I may have embaressing photo's of my teenage fashion mistakes but at least I won't have to take them to work with me everyday or down the aisle on my wedding day!

you were bleeding more then i expected lol. looked good in the end 
good luck on the stretch but definitely go for it cause i took my stretch out and i was at 14mm and not i am at 3mm again so if you don't like it when you have then or later in life you can just take them out and they will heal, that is as long as you don't get your ear hole punched that will mess your ear up for life 