Birth Control After Birth

Who's doctor is pushing them to get on birth control specifically and IUD or arm implant? I'm going to be 29 weeks and my doctor keeps saying I need those birth control even though I keep refusing and say I just will take birth control PILLS. I am honestly fed up with her telling me what birth control I should get. I've only ever used birth control pills in fact after my FIRST I took pills for one month then stopped for years (no pregnancy until NOW obviously) I feel like I can handle not getting pregnant without birth control yet doctor doesn't listen.