My husband, after being tested, had some
fertility issues. He sought medical treatment by a urologist
and after a year of ruling out
and trying things his sperm count and motility didn't increase. All along, he thought it was because of my condition that we were having difficulty, but really he was the bigger problem. We underwent IVF - one cycle and I am now pregnant.
Bottom line, don't assume that your wife is hiding things from you.