Well our live in stud boy is only 10 wks old at the minute..
and our other boy doesn't live with us,so not a problem.....yet
We let our girls scream-as after a while we kinda got deaf to them and we have great neighbors-thank god
Luckily our girls follow each other it's rare they come into call/heat at the same time
Not sure about the "pretend mating"/false pregnancy's as dunno that this wouldn't mess with their heads/hormones and they don't need that but maybe someone else will be able to help