Chances of getting into MD/PhD program?

Hello. This is my first post, so please bare with me.

I want to get into a biomedical engineering MD/PhD program if possible. Applied medical research is my passion. However, my GPA is awful. I just want to know what my chances are and how I could improve them.

B.Sc. Chemistry - 3.26 gpa (2012)
B.Sc. Honors biochemistry - 3.26 gpa (2012)
EMT B certification (2015)
M.Sc. Chemical engineering - 3.2 gpa (almost graduated)
Graduate certificate in biomanufacturing (almost done)

I have...

Chances of getting into MD/PhD program?