(NEW YORK) -- Alec Baldwin and his wife Hilaria welcomed their fourth child, a baby boy, on Thursday.
The fitness guru shared the news on her Instagram page writing, "He’s here! He’s perfect! 8lbs 2oz #wegotthis2018," alongside a shot of the proud parents smiling down at the baby as she held him in her arms.
Before heading to the hospital on Thursday, Hilaria shared a photo of herself dressed in sweats and slippers, captioned, "Earlier this morning...wish me luck. Bye bye baby bump."
The baby, whose name has not yet been revealed, joins 4-year-old sister Carmen, 4 and brothers Rafael, 2, and Leonardo, 1.
Alec also a 22-year-old daughter, Ireland, with ex-wife Kim Bassinger.
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