finally going back to my RE

I finally took the plunge to go back and see the RE I was seeing before concieving my son. We ended up concieving naturaly. After trying for #2 since he was born 2 and a half years ago and 7 months seeing my ob, we have been referred back. Im so excited. I go on the 8th. Ill be cd20. Ive recently done all kinds of tests with my ob. What are my chances I can jump right into IUI my next cycle?