Sperm Count. Motility. Morphology

My husband has had two sperm analysis that had a low count on all three categories and he has one more to do in hopes to have answers on what our next steps of infertility are. He has started to take supplements, exercise and change his eating habits I hopes that his sperm numbers can change. Has anyone ever been through the same and changed their lifestyle and saw a change?

I’m staying positive but my heart breaks because we both want this so badly and we want to do all possible in hopes to conceive.