My husband is 48 and takes a lot of medication and is a lot of pain with migrain and joint problems ge is also very over weight, we have been ttc useing home home insemination as sex is impossible, but the amount of sperm he is producing has dwindled to next to nothing, we have been trying for well over a year now with no luck, my question is is there any thing we can do to improve to amount and quality of his sperm x