Celine Dion will start trying for a second child when she completes her world tour.The My Heart Will Go On singer, 40, and her husband Rene Angelil welcomed son Rene-Charles in 2001 after undergoing fertility treatments.Seven years on, Dion wants to attempt the process again - but she won't be too disappointed if she fails to conceive the second time around.The star, who is currently on her Taking Chances World Tour, tells chatshow queen Oprah Winfrey, "We are going to give it a try after my tour. Hopefully we are 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."
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