Will my Mom know

Hello, I am 18 turning 19 in a few days. I want to start birth control but don't know how my Mom will react. I'm still on her insurance, we have Medicaid. If I get birth control on the insurance will she be notified or will she find out at all? And what is the best form of birth control that went be very noticeable? And also should I go into a planned Parenthood or just try and do it online?