I had my u/s this morning and have 2 matured follicles, size 24 and 20. Blood work indicated I am not ovulating yet. So, I trigger tonight (Monday) and do <a href="https://glowing.com/glow-fertility-program">IUI</a> Wednesday. My question is, should I time the trigger shot exactly 36 hours or 40? The doctor mentioned that many women respond with doing the <a href="https://glowing.com/glow-fertility-program">IUI</a> 40 hours after trigger, but I am afraid my follicles will ovulate before the <a href="https://glowing.com/glow-fertility-program">IUI</a> because of their big size. I'm probably worrying too much as this is our 2nd <a href="https://glowing.com/glow-fertility-program">IUI</a>, but I've responded a lot better this time around on letrozole and not nasty clomid! Any advice? Thx!