Vicodin During Pregnancy? Need Some Honest Help...?

I have been on Vicodin for about 3 years on and off. After my son I tore really bad and have had cysts and scar tissue build up and have not been settled long enough for the surgery I need. I am now 5 months pregnant and am fed up with Vicodin...How do I go about this if the doctors have steadily prescribed them to me and I am worried for my baby...I am confused and need honest to God help...my mom is being really supportive, but my dad is just giving me physical signs of anger...I have read on it and have had severe insomnia and the docs ended up prescribing me with Ambien too. Can anyone actually help me? Please....