The Canadian star, 41, is already mom to 8-year-old Rene-Charles, her only child with husband Rene Angelil, 67.
The youngster was conceived after the couple underwent fertility treatment.
Dion and her husband are said to have employed the services of another team of fertility doctors in New York City to help the singer fulfill her dream of becoming a mother again, according to the Journal de Montreal.
Dion recently admitted she wanted to have another baby after she wrapped up her Taking Chances World Tour in February, telling talk-show host Oprah Winfrey, "We are going to give it a try after my tour. Hopefully we (can get) pregnant again.
"I have a small window of hope. But we have been so blessed already. We tried six years for Rene-Charles. We have our miracle baby."
Angelil, Dion's former manager, has three children from two previous marriages.
A representative for Dion had not replied to a request for comment as WENN went to press.
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