Halle Berry without any words confirmed she is expecting her second child when she cradled her baby bump on the red carpet on Monday.

The 46-year-old held her mid-section as she smiled for cameras in Argentina at the premiere of her new film The Call. Berry is engaged to actor Oliver Martinez and is mother to 5-year-old Nahla from her previous relationship with model Gabriel Aubrey.

Click here to see Berry cradling her baby bump on Monday.

Shortly after news of her pregnancy went viral (it was also confirmed by the actress' rep), some questioned whether Berry's advanced age and her having diabetes will pose health risks for her and her unborn child.

Concerns may have been raised but experts said advances in testing and medical care can guard against many medical problems, USA Today reported. Any pregnancy after age 35 is risky but "the paradigm has drastically changed because of noninvasive tests that are available now," according to physician Chavez, who is also the chief of Maternal Fetal Medicine at Winthrop University Hospital in Mineola, N.Y.

He added, "It's no longer the case of doom and gloom."

The baby of an older woman is more likely to have chromosomal changes that can lead to birth defects such as Down syndrome, but the report noted that chances of the above happening is slim.

Medical Geneticist Brian Skotko is also co-director of the Down syndrome program at Massachusetts General Hospital in Boston. He told the publication that chances of having a child with Down syndrome at Berry's age (46) are about 1 in 18, which is 5.5 percent.

As far as medical advances, electronic fetal heart rate monitoring has been praised for reducing the risk of infant and neonatal death. A new blood test also is a safer method of detecting birth defects than amniocentesis, which carries a risk of miscarriage.

Berry has diabetes but as long as glucose levels are controlled and managed with the necessary medical care and good nutrition, "everything could be fine for her and her baby," said Ranit Mishori, physician and associate professor of family medicine at George University School of Medicine.

Birth rates for almost all age groups are at an all-time low, but numbers are on the rise for women in their late 30s and early 40s, according to a 2012 report from the National Center for Health Statistics.

"In terms of risk with women who are a little bit older and the potential genetic problems the baby may have, we pay closer attention to that for sure," said Dr. George Macones, chairman of the department of obstetrics and gynecology at Washington University in St. Louis. "If someone is healthy, though, and doesn't have medical problems other than the genetic issues, there shouldn't be a lot to worry about."

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