Mum’s the word on whether Mariah Carey may or may not be expecting, but the singer has stirred up further speculation by stepping out in Sao Paulo wearing A Pea in the Pod‘s Spaghetti Strap Halter Maternity Maxi Dress ($140). We spotted her last Thursday leaving a steakhouse in Brazil in the brown dress from the maternity chain.

While Carey, 40, remains quiet and husband Nick Cannon plays coy, the singer’s rep Cindi Berger shares, “I spoke to Mariah from Brazil. She is very superstitious — and when the time is right for her and Nick to announce something, she will.”