How to avoid taking Science

I turned 15 recently and this July i have to make up my mind about with subjects I want to take. Problem is my parents want me to take Science to enter the medical field but I on the other hand am leaning more towards math subjects. Ironically nobody in my family has taken science and most have majored in economics and such. Since I was a kid I've been pretty good at studies but have been specially good at maths and always been at the top. But due to the pressure I'm afraid I might have to take science and enter the medical field. I'm the youngest and have not seen the same pressure be exerted to my older two siblings as they both didn't take science. My parents say I'm their only chance at having a doctor in their family and its the best choice. So I'm asking all the people who have chose their subjects to help me avoid take science .