I think that could be the worst thing that could happen if they all happened to hit on the week of the experiment.
You could cut the progesterone with a knife. (hopefully there will not be any on board, knives that is)
Hmm. Maybe you’re right. I was thinking get it all out at once. But it might be best to keep it at moderate but constant. LOL
There are several solutions for that issue:
* Require the women to have passed menopause to be on the program. Not photogenic, but more hygienic.
* Require them all to use Norplant or another injectible contraceptive that suppresses the menstrual cycle.
* Require all women considering the space program to have has a hysterectomy.
While you’re at it, require anyone wanting long term space travel to be sterilized to avoid even a risk of accidental pregnancy or mutated offspring later, along with requiring the appendix to be out so that can’t need to come out off world.