Sperm morphology

I recently got checked out and my husband to , to see the cause of my recent failed pregnancies along with it just not happening as easily as it does for others. I apparently came back with normal findings , my husband on the other hand came back with Lowe percentage of good , healthy, normal shaped sperm. I'm sure it has to do with how he takes care of himself , which he doesn't , we are now educating ourselves and working on that, including starting to drink vitamins which he can definitely be lacking. I just want to know if anyone else has had this same situation and if they've come out with a successful story :) thanks !