extremely high risk pregnancy and birth control

So im having my first baby in September, I have a extremely high-risk pregnancy and im on complete bedrest, not allowed to do anything.

Im looking for a Birth Control i can get on for after i have her, to ensure i dont get pregnant for awhile, especially because my high-risk ( and because im not allowed to tie my tubes only being 19! )

I have no experience with birth control, other than people telling me its bad for your body but like i literally need to be on it to ensure i do not get pregnant.

What was your experience with BC and what kind do you think is best?