I've been watching this from the start. So far I haven't seen anyone evacuated off the Nimitz for pregnancy, and they clearly take steps to discourage the possibility. They sure seem to be taking steps to ensure sexual harassment isn't a problem. And the quality of the enlisted don't seem to be a whole lot different than when I was on active duty - during the Reagan years. At the end of the day it all boils down to can the ship and crew carry out their mission? From what I've seen so far the answer to that seems to be yes.
I don’t think you’ll be allowed to see one get evactuated when it happens, which is very frequently as you know. Of course, how frequently is a matter of conjecture because the military won’t release statistics. In the brigade I was with we had the equivalent of five platoons (a company plus) nondeployable for combat at any given time. Of course, the SF, the Ranger Regiment, the (as you know) Silent Service, don’t have to put up with the nonsense for the most part.