Please dont go 'blundering in' telling hosp staff to 'watch her' or 'alerting' to post natal depression- it will only make it worse,your DIL will feel you dont trust her,or some such,and if theres any real reason to worry im sure the staff would have noticed themselves,she certainly doesnt need 'tarring' with a brush just for being a bit dissapointed,which as she had 2girls in a row maybe she just wanted to see how different life was with a boy,but if so im sure she will get over that,shes named the baby so its an indication she already is,please dont worry anyone unduly about her mental state,its probably just initial shock of the whole situation,which will right itself given a little time & TLC.(my youngest is much loved, and his older siblings say I've ,'babied' him much more than them),so you see it makes no difference as to their sex,as my youngest daughter,older than her younger brothers,is still claiming her 'baby girl' title at 27!