For those with unexplained infertility who underwent <a href="https://glowing.com/glow-fertility-program">IUI</a>, how many rounds did it take to get your BFP (if you did)?

Just underwent my first round and got a BFN today. My doctor will only do 3 rounds as success rates decrease after this. It's also somewhat costly - $725 out of pocket each round (private insurance does not cover). Not sure if we should try again this cycle, skip a cycle? Any insight is appreciated.