The 50-year-old singer revealed in May that she is going to be a first-time mom with husband Wissam Al Mana, reported Us magazine.
"Janet is super excited. She's doing great. Janet feels really strong and is just so excited for the baby to come. She feels like this is one of the best things ever to happen to her, she says. She's really excited to become a mom," a source said.
Earlier this week, the "Unbreakable" singer, who has stayed out of the spotlight since announcing her pregnancy, stepped out for a shopping trip in London.
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