5 years TTC our second

We recently found out that my husband has a low sperm count (around 7.5 mil), but we conceived one child without any help back in 2008. Our daughter is now almost 7 and we haven't been able to make a second pregnancy. I'd love to hear from others with similar stories, and am hoping this group can also be a place where we get to celebrate success stories of couples with low sperm count who DO get pregnant! We have had one unsuccessful IUI and are considering another try or two there...