Talking to US Weekly on Thursday, Rowland referred to Beyoncé's future child as a "she" when asked what she would purchase for the baby shower.
"I don't know. I think her dad [Jay-Z] is gonna give her everything anyways, all I can give her is love," Rowland said.
"I think she'll be very well behaved. Her parents will make sure of that."
Beyoncé originally announced that she and Jay-Z are expecting their first child during the MTV Video Music Awards in August. The couple will welcome the child in February.
The 'Countdown' singer previously confessed that she was originally nervous as to how people would react to the news of her pregnancy.
> Beyoncé's mother 'knows sex of baby'
Watch Beyoncé's video for 'Countdown' below: