Miscarriages and low morphology

SoI misscarried last dec and April. And I haven’t gotten pregnant since. My hubby has 2% morphology and all his other numbers are good. They say everything is normal with me. Ps I have 2 healthy children from my previous marriage. I’m just so confused and I don’t know how to get his morphology up. It only needs to go up 1%. We have a urology app next month. Anyone ever go through this? And has anything helped?