10/11/2011 at 03:30 PM EDT
Fantasia Barrino has revealed the sex of her baby
– and that she's due Dec. 29.
"I'm having a boy. I'm at home, I'm on bed rest right now," she said Tuesday in a phone interview on The Wendy Williams Show
Barrino – already mother to a daughter Zion, 9 – still has not spoken about the baby's father, but the singer has most recently been romantically linked to Antwaun Cook. Their relationship made headlines
last summer after his divorce from Paula Cook was linked to his affair with Barrino, 27.
"I'm not gonna talk about that," she told Williams when pushed to discuss any relationship with Cook.
Williams asked the question after reports surfaced that family members of the late gospel singer Mahalia Jackson, whom Barrino was set to play in a upcoming biopic, were angry with Barrino because she is allegedly pregnant with a married man's baby.
"I almost went into labor, because it was the first time that I’ve heard anything about that," Barrino said of hearing the report. "Haven’t spoken to the family yet, haven't heard anything from the family, so that was my first time hearing anything about it."
Barrino does respond to one rumor, however: That she caused trouble for the film because she neglected to tell producers she was pregnant.
"There were no contracts signed, and there was no set date and time," she says of possibly starring in the film. She also says she hasn't heard from the producers recently, but that she had studied Jackson's life and her singing in order to work on her portrayal.
"I began to gain the weight, I began to study her," Barrino said. "And then they called us back in January and said the investors had backed out. So they were waiting on investors."
She added, "I wanted to make the family proud, and most of all, I wanted to make Mahalia Jackson proud – and my fans and everyone who's been following me."