Pregnancy test after iui

Anne

Hello, I got a positive OPK Friday September first and then got my <a href="https://glowing.com/glow-fertility-program">iui</a> the same day. I took a first response advanced digital test today (11 days after my <a href="https://glowing.com/glow-fertility-program">iui</a>). It was negative. I'm guessing it's most likely accurate..... right? Should I be looking to next month now?