The pill

I want to go on the pill 1) to help regulate my periods and 2) as a form of birth control, but my mum doesn't know that I smoke and I have heard that if you smoke you have to tell the doctors so that they can give you the correct pill... Is this still the case? I am 17 but me and my mum are close and I know that she will want to come in the doctors with me, I'm trying to think of ways around it but I don't know what to do, does anyone have any avcice or alternative birth control recommendations??? Thank you!