Birth control.

Yuri • 1st Baby Boy 👶🏻 born on 7/4/19. My 2nd 👼🏻 8/20/23
What should I do if I want a birth control? Should I ask my Doctor for a prescription birth control? I heard I might get it for free if I ask my Doc. 🤔🤔🤔 I don't think I can afford to buy it.