I have no idea if this will help but I was reminded of a radio programme I heard this week-end.

They were interviewing female crew members of two navy vessels. They we asked if they would like to see all-female crews. They said not, as even now after a while together as a group, that they all tended to have their monthly cycles at the same time. They felt that if the crew was all-female that it would be difficult to 'lift' themselves at certain times and that the running of the ships would suffer…..