Advice for producing Sample.

DH and I have been trying for a year. My doc isn't concerned with me because I'm very regular, but we really need a SA for him. He can't produce a sample under the pressure. He has tried 4 times on his own plus we have tried using the special condom at home and nothing. (I'll also say that he can produce just fine during BD.) Its always stressful bc we live 45 mins from the lab so producing at home isn't even that relaxing because there is such a time crunch. Any advice or words of wisdom?