Pain meds n pregnancy

I have one kidney,pancreatitis,hital hernia,kidney stonea,a swollen kidney,need kidney stints placed n i been on vicodin for 4 years everyday im pleading for help to taper n wean off or give me a supplement to ease pain and what will become withdrawals i just want a healthy little bundle i do eat healthy n take my prenatal n i am exercising as tolerates and i am seeing a dr come monday....any advice need help deathly afraid of pain n withdrawals even more scared of this med harming my baby