Baby name issue

Okay guys I need your advice. I'm a full time nanny and the family I used to nanny for is throwing my shower for me! They had two twins thru <a href="">Ivf</a> and aren't having any more kids but still have one egg frozen. They always said if one of the eggs had been a boy they would have named him Carson . My boyfriend and I are obsessed w the name Carson and want to name our baby that! But I feel horrible. should I care? Help