Congratulations on the improvement in sperm parameters, the improved lifestyle and weight loss! I hope these improvements along with a couple IUI's will do the trick!
You are correct and with Kruger Strict Morphology 4% is considered within a normal fertile parameter. That means you have the same odds of conceptions as the next guy on the street with numbers all within those normal limits.
IUI can give you anywhere from 15-30% chance of pregnancy per try. This will depend on the success rates for your doctor/clinic that is doing the sperm prep and insemination. Ask what they typically see for a couple in your situation for a better idea of your odds.
Good luck and keep us posted! Make sure to ask for pre and post wash sperm counts to get an idea of the amount of sperm used for the inseminations and the quality of recovery the lab has with the sperm preparation.
Amy Perkins, MS, TS (ABB)
Laboratory Supervisor
Arizona Andrology Laboratory & Cryobank
International Center for Vasectomy Reversal