Low sperm count..??? HELP

My husband and I have finished our testing with our fertility dr. Turns out everything is good with me and I have a high egg reserve/plenty of eggs and no issues and hubs has a low sperm count. She said anything below 15 million is considered low and his count was 6 million 😕. Has anyone had pregnancy success with their partner having that low of sperm count or did you have to use <a href="https://glowing.com/glow-fertility-program">IUI</a> OR <a href="https://glowing.com/glow-fertility-program">IVF</a>?