Husband had testosterone pellet injections?

My husband was prescribed testosterone and chose to have the pellets implanted last October, then again in February. We have been ttc for #2 since January. Once we realized the effect on his sperm, he quit. We've read that after 6 months his test levels will even back out. Since we have a proven history of fertility, he doesn't think a sperm count is necessary. Does anyone have any experience with their husband getting testosterone treatment? I really just need some positive reassurance. It's been a tough day and I'm starting to feel like we'll never conceive.