Male infertility

J.
My fiancé and I were trying for a baby for over a year and it never happened for us so I decided to see my OBGYN about it. I took fertility tests and she said that everything looked good for me. However my fiancé didn't do a seman test and I'm really starting to think it's him. I'm just wondering if there's ladies who experienced male infertility with their SO? How did you handle it and what were the treatments if there's any?