Psoriatic Arthiritis

I have just been newly diagnosed with this autoimmune disorder.
According to my bone scan, it is in all of my joints except my elbows. I have such pain in my hands, feet and back and my shoulder blades tingle and sting.
Their recommendation as of right now is to start Enbrel injections once a week.
I am 29 have a 1 and a 2 year old, and would like to have another baby in a few years.
I hate to take ibuprofen when I need it. I am terrified to take Enbrel, a possible side effect is lymphoma. I don't want to trade one set of problems for another and I need to be around for my children. I was told the lymphoma risk is small, and that it would be safe for me to go off to try to have a baby when I am ready. I also fear possible birth defects. My other drug options are much worse, Enbrel would be the "safest" bet.
What I want to know is, does anyone here have this? If so, I would like to speak with you further on your treatments etc. You can email me privately if you like.
OR, does anyone take care of patients with this condition around my age? It is in my SI joints and they say it is possible that it will spread to my spine and fuse the vertebrae. If so, how fast is the progression if I decide to let this ride it's course. I would like to try a more natural way to try and help this first before I dive into meds...I have just stated to do yoga and eat a little healthier...wishful thinking...
Thanks for your input,
Mandy