They are now suggesting very expensive procedures as our only alternative. I just answered a similar question for, if so, the beginning of this answer will be redundant. The answer to your first question about bike riding, there should be no effect on a man s fertility. If after this period of time you have not conceived it is then recommended you proceed with an infertility evaluation of both the male and the female. I can only assume you have done what I have just described and the semen analysis parameter you have provided is a result of this work-up.
Infertility is a very expensive area of medicine and often attempts fail.
It is unfortunate that all of us who want to conceive are not always able. To begin with below, here is a normal semen analysis. Semen analysis would be a good place to start if you are concerned about your husbands fertility status. This would give you an accurate idea if there were enough sperm and how well they move. After you have completed a standard infertility work -up, the physician should be able to explain what the problem is, discuss your options and tell you how the complex procedures to which you eluded can help.