Letrozole+metformin. Timed intercourse or IUI?


I’ve been on metformin since November. Got pregnant first cycle on it but MC at 5 weeks and change. Nothing since. Adding letrozole this cycle. Since I apparently sometimes can ovulate on my own (recent pregnancy) my RE gave me choice of <a href="https://glowing.com/glow-fertility-program">IUI</a> vs timed intercourse based on positive OPK. What would you girls do?

Btw have been trying for about 18 months, only that one short pregnancy, otherwise all BFNs. Part of me is scared to do the <a href="https://glowing.com/glow-fertility-program">IUI</a>...does it hurt? My HSG hurt a lot!! So I’m leaning towards timed intercourse, but not sure what is the right thing to do.

Any advice is appreciated!