Can anyone explain IUI steps?

Megan

Dr says we’re doing clomid and <a href="https://glowing.com/glow-fertility-program">IUI</a> DH SA 15% motility but everything else normal. I’m starting clomid 50 my today CD 3-7. Then we do bloodwork CD 11? Why? Then she said something about a trigger shot?! I’m so confused I’m going to ask her on Monday but I didn’t know if anyone had any experience/insight ??