Needing advice

My husband and I have been together for 8 years. We have two children together and had a miscarriage last year. We have been so eager after losing our angel baby to have another and have had complications. I had blood work done to check my progesterone levels and they were normal so my gyno recommended my husband get checked as well and after giving a specimen we found out his sperm count is great but his sperm motility and morphology is a little low so they are recommending him to a urologist to figure out our next steps. I guess my question is, has anyone else ever had this issue with their husband having low morphology and motility? What happen and what did they do for it? The gyno said that it can happen even after having kids over time due to stress or medications but my husband doesn’t take any meds other than a vitamin daily. He is 26 by the way. Advice?