TAMPA, Fla. (AP) - The wife of Republican Mitt Romney is opening up with new details about her recently disclosed miscarriage.

Ann Romney spoke in a taped interview aired Tuesday on CBS' "This Morning," hours before she addresses the Republican National Convention.

She describes the initial shock and excitement of having learned she was pregnant in her 40s, only to realize early one morning she was losing the baby.

Romney says she chose not to wake her husband up around 3 or 4 a.m., opting to wait till 6 a.m. before telling him she needed to go to the hospital.

She describes her youngest son Craig's sorrow. She says she consoled him, telling Craig he probably won't have any more brothers or sisters but that he will have children of his own someday.