Iui 1 cycle

It's been almost 2 year we have been TTC. Doc asked to try <a href="https://glowing.com/glow-fertility-program">IUI</a> this cycle and it's been dpo16 had bfn yesterday. I have been on susten400 for 15 days after ovulation.

I have signs of af but it's not showing up.

Has anyone who have been on <a href="https://glowing.com/glow-fertility-program">IUI</a> and had successful on first try. Any suggestions pls... Wats max days does u get bfp?