Is cutting down on fentanyl this much even close to safe?!?!

I have a 50mcg patch that I have to change every 3 days and my dr just gave me a prescription for 12 mcg and in 9 days I will be on nothing. Personally I think my dr is an idiot to do this to me considering the fact that I need surgery and on top of it I am pregnant. My OB knows of my situation and told me to talk to my practitioner due to my pain levels and concern for mine and my babys safety but I am just really freaked out. Not to mention too sick to talk or weak to stand, someone please tell me what I can do. Not what TO do, but what I CAN do, preferably something that involves less agony and suffering than this. I know I can tough it out (or try to without killing myself, due to my pain and disability I have attempted suicide before but just the thought.. I can't do that to my baby, I can't do this to myself) and I know I could go to the emergency room but what would they do? I have been on these meds for over 10 years (everything from vicodin to morphine, living like this is what caused my suicide attempts) I currently take percocet as well for breakthrough pain. I haven't worked in over a year despite the pain meds and am unable to do regular every day routines such as cleaning my house as well as myself without them, hell I can barely do most things with them. *The reasons I am on these meds are due to a neglected L1 compression fracture (my back was broke for 4 years because I was in foster care when it first occurred and was left untreated for 2 years), damage to my saccrum and copcyx (shattered tailbone) and a cyst on the nerve cluster extending from the top of my lumbar region- and unfortunately thats just what they know about. These are problems that are unable to be fixed and the ones that can be are still going to wait until the baby is here, which is why my OB felt it necessary for me to continue my opioid the-rape-me. ANY help is appreciated.