When did you get your bfp with iui?

Currently 10dpo, testing negative. Feeling super bummed. I’ve been ttc for going on 3 years and this is my second round <a href="https://glowing.com/glow-fertility-program">iui</a> with letrozole. Follicle and sperm both look good. Just needing to hear some feedback from my <a href="https://glowing.com/glow-fertility-program">iui</a> ladies! Anything is helpful❤️