Céline Dion Pregnant With Embryo Frozen For 8 Years

Just yesterday Céline Dion revealed that she and her husband René Angélil are expecting their second child. Today, PEOPLE reveals that the 41-year-old award-winning musician conceived through in vitro fertilization with an eight-year-old frozen embryo.

According to her physician, Dr. Zev Rosenwaks, the Love Can Move Mountains songstress is "very excited" about the pregnancy. Dr. Rosenwaks, who performed the in vitro fertilization procedure, recalled his telephone conversation with the French Canadian pop star earlier this week to say the pregnancy test was positive: "You could hear her chuckling," he says. "She was very happy. So was René. They are both very thankful."

Rosenwaks, director of the Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine at New York-Presbyerian Hospital/Weill Cornell Center Medical Center, confirmed that Céline conceived through in vitro fertilization, as she did with her son René-Charles. The doctor also revealed that the embryo had been kept frozen in liquid nitrogen for the past eight years. "She is very, very early in her pregnancy," says her doc.

According to the fertility specialist, eight years does not exceed any kind of expiry date. "There have been embryos that have been [frozen] for more than 10 years, and even more than 15 years, that have successfully thawed and resulted in a pregnancy."

Céline's doctor went on to say, "She is feeling well. So far, so good. I look forward to hearing the fetal heartbeat. René and Céline are both looking forward to a pregnancy that is a healthy one." He adds, "There is no question she is ecstatic."

Reports state that Céline is due in May 2010.