I would suggest getting a test called an HSG as soon as you can. This would determine if there is spillage from your tubes and let you know whether it is tubal factor or not (which us j-pouchers are at a risk for because of possible scar tissue). I am sure that your doctor will suggest this, among several other things, during your appointment. Are you seeing a reproductive endocrinologist?

I am just seeing my OB doctor.

Upwards of 50% of women have infertility issues after J pouch creation.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1860095/

I was able to conceive one child naturally after my J pouch (in 2001, when my pouch was 10 years old)... Had a C section and one year later had an open removal of a large ovarian cyst. My surgeon for that was an infertility specialist, and he said my daughter was "an act of divine intervention," and no way should I have been able to conceive naturally (so much scar tissue, ovaries all hung up on my intestines). He said I'd likely have issues with another natural conception; I never got pregnant again, so he was right. He DID, however, say I was a good candidate for IVF, but we weren't into that.