Getting nails done while pregnant

Randi

my fiances cousin and I made plans to go out with my fiances mom and have like a little girls day get our nails and hair done then go out to eat. She seemed fine with it then today she said "we aren't getting our nails done you can't because your pregnant" i told her I planned on wearing a surgical mask and she still said no. because it will still hurt the baby. is this true?