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On Monday morning, country singer Mindy McCready gave birth to her second child, a son named Zayne.

Reading: Mindy McCready Goes Missing With Son

Originally believed to be pregnant with twins, McCready's spokesperson tells E! News that she and her doctors "misinterpreted" the initial sonogram.

"Zayne is truly a blessing and a joy," McCready and boyfriend David Wilson announced in a statement. "It was a long and trying pregnancy; we're so happy he's here. There are no words to convey how happy we are."

This is McCready's first child with Wilson. The singer has a six-year-old, Zander, with her ex Billy McKnight.

Related: Mindy McCready's Ex Claims She's Not a Fit Mother

McCready made headlines in November when her mother, Zander's legal guardian, reported her daughter and the 5-year-old missing. McCready eventually returned her son by judge's order.