Hi and

Sperm counts can fluctuate ALOT even from day to day and it could be taking your DH awhile to build his supply....but to go from 110 million (which is excellent,BTW) to zero zperm is something you should probably investigate further. I would talk to your RE and also see if you can get your DH in to see a urologist to discuss the issue. Low volume can be a sign of prostate problems or other issues that may be able to be imporoved. It sounds like his sperm count is awesome sometimes and not other days. Hopefully if it can be awesome when you are ovualting you can get pregnant soon!