Registered DD on Monday, 4 days old, she's my rainbow. Registrar asked if it was my first and I explained no, had NND 14 years ago. To which she replied "Oh what a lovely replacement"
REPLACEMENT ??? 

AIBU to want to smash her face in ?! I was so shocked that I couldn't event speak, also called DD 'he'.
Still seething now but I understand that some people react differently when hearing of a baby's death, as a registrar though, I'm sure this is not her first time of hearing such things.
Do I just let it go ? Not sure what else to do and I'm sure she can as pretty embarrassed by her own words.