Failed again what to do next please suggest something?

We have been ttc from 5 years. 2 years done medicated cycle and timed intercourse with follicular monitoring. Then moved one step ahead n done

IUI

but today failed second

IUI

.

All tests are good of both of us. Also had done hsg last year. N I also have regular periods.

Should I continue with more IUIs or its just a waste of time and money?

Please suggest your valuable advice. I m so confused right now 🙏