Dead Sperm now what shall we do?

I have my husband taking 50mg zinc/day which is supposed to incrase sperm motility and #. Not sure how long it takes to work. I'm ttc#2 but figured I would give it to him incase. You can also take guaffanessin (regular mucinex) which thins CM and makes it easier for sperm to swim. Also, buy pre seed (www.preseed.com) it is the only sperm friendly lubricant. I am doing both of these because I really want to help the sperm get to the egg! Baby dust!