My husband is 36 and has very low testosterone (<150). He was on Androgel for about 9 months, and stoped taking it because he noticed no difference in how tired he was or his libido. He wants to go on injections, because we have heard from a lot of other people that those work the best due to immediate relief. We are aware that there will be a few days when he'll be feeling sluggish again due to the wear-off. My question is this: If he were to go on injections, will that automatically stop production of sperm? We want to have a baby in about a year and a half to two years. Also, if he takes it for a little while, is it possible for his count to stay up after taking it? Any help would be much appreciated. Thanks!