Are you talking about another game? I haven't played this release yet, but haven't met a 'Sandman' so far.
At any rate, it is always possible to have exceptions to the known Eternum rules. Benjamin is certainly proof of that. But I maintain my stance on pregnancy in a server. Don't see it continuing into real life without some extraordinary circumstance happening. Don't know why
Caribdis would want it to happen either. If one or more of the LIs are to get pregnant, real life would certainly work just fine for that.