How to help husband “deliver” his semen analysis?

My husband says he has a hard time ejaculating on his own without using any kind of lubricant (is lotion, lube, etc).

As many of you know you can not use these things when giving a semen specimen for analysis, what would you suggest he do? They said we can go into the room together when he has to give his sample but it can’t have saliva on it either. He also has trouble getting it up under pressure... has anyone been through this or have any suggestions?