Thanks, Anney and Jodi.

As nobody has yet been able to identify exactly what my arthritis is, I've always had the question in the back of my head that there may be an autoimmune problem with regards to maintaining a pregnancy, even though my rheumy assures me that all the tests have come back negative and it won't be a problem... there's still that worry there.

I have to admit that I'm terrified of the mood changes and the weight gain (been there, done that, don't want to do it again!), but I do need to do something to keep myself mobile, and I don't want to have to suspend the IVF treatment for 6 months until we hit weather where the arthritis is more manageable... but it sounds like it just may solve two problems (not that we know yet if there is in fact a second problem) at once.

I'll keep reading and researching, and hopefully I'll be able to make a fully informed decision next week.

Anney, it would be good if I could get some idea of the dosages involved... Although I will be making every possible attempt to keep my dosages as low as possible.

BW