Ok, so I'm not a mom. But this is my take on it.

I have a now 17 yr old niece who nagged, nagged, nagged and nagged some more at her mom to get her piercings. She would always say no. So what did my niece do? She did them herself or had a friend do them.
If it were me, I would rather she go to a professional and not let friends do them.
I see nothing wrong with piercings, they are holes that normally heal up with minimal scarring. I had my nose and belly pierced at one time (if it weren't for my job I'd probably still have my nose ring, I think they are cute).

But it is your moms house and you are only 14 and really have to do what she says. So....guess for now you'll have to wait!