Piss everywhere!!!!!!?

I have five cats. All males, all neutered at a young age, all have lived together for at least three years and got along fine. We moved two years ago, and now, all of a sudden one (Roo) started spraying the walls. I bought feliway, many of them- and placed them all over the house. Roo seemed to stop. Then my other cat (Kitty) started actually peeing on toys. Not spraying, just peeing. He is a big cat and its alot of urine. I do not know for sure if he is doing it anywhere else, I have only caught him peeing on the toys. Now I think Roo has started up again. I am pregnant and cannot deal with this smell much longer, it has been going on for a long time and my husband works at a break neck pace to keep it clean, but it is becoming too much. What the hell am I suppose to do now? I do not really want to put Roo on medication. I hear it just makes them zombies, and I cannot give them up and.... I do not have a yard :( My options are limited. Anyone have any idea how to make them stop?! I have heard where people have problems with cats spraying outside their home, and they have a human male pee around the house (outside) and it stops. I know it would be drastic, but do you think that would break them of it for good if my husband just did it once inside? I know it sounds crazy, but I am desperate here and am willing to do it if it might work.