- I'm 20 and I just became sexually active with my fiancé. I have a heart condition and I can not risk getting pregnant at all! Because of my heart condition I very limited to my birth control options. I can chose the Depo shot , pills or the Implanon . I'm leaning towards the implanon but I'm worried it will get lost or be super painful. I have never used birth control before and am absolutely new to this and am very nervous! Please help which of the three I should chose and why!