Pregnancy and Arthritis

My husband nad I want to have a baby.  I got off my methotrexate about 4 weeks ago and am feeling the pain.  My gynecologist said I need to get off my other meds too.  The ones I need to get off of are my Naproxen and Zyrtec.  I'm more concerned about the Naproxen, it seems to be the only thing keeping me together.  I take prednisone, but is that my only alternative for my pain, cuz that alone doesn't help as much.  I have severe allergies too.....is there an alternative allergy medicine I should take?  Anyone have any answers please share, cuz I feel very naive. I haven't been off my meds for years and I'm feeling what it used to feel like and it's not that fun, but I guess that's what has to happen!