Falklands is classed as operational - pregnant is not compatible with ops and the default answer is to be sent home - the default answer since I can remember.
I wonder if the Russians used that criteria on the Eastern Front in WWII . . . a lot of their soldiers were women.
Surely it's time for us to grow up - pregnancy is not an illness and certainly in the earlier months it will not incapacitate the lady (it may alter her demeanour temporarily).
Surely it's not beyond the wit of man (sic) to discuss her 'disposal' with HER?