If you go south east of the Greater Mass Blood Clinic (if you get to the overpass you've gone too far) there is another deathclaw nest and i found an egg
Praise be me
Finder of things

Push of scaver, I was here first heheh

But its true also a cracked one there if you want to decorate (does not work so well on tables think I may make a bedroom of disappointment for followers who fail one to many times..... Ya your sleeping in the deathclaw hatchery tonight!)

Den is Slightly guarded by a yao guai if its same place.... ( I am thinking this is the nest of the deathclaw that ambushes you in that mayoral bunker but who knows heh)

here's hoping they release a baby deathclaw companion