Bfn should I wait or do it immediately?

Holley
Should I wait to do another <a href="https://glowing.com/glow-fertility-program">iui</a> about a month or do it immediately? Calling Dr. tomorrow as AF came to visit. Every thing looked good. I want to know why? Hopeful it not unexplained as this will be sad to me. I just want our baby so bad.