.California City, CA, USA
Hilaria, 37, surprised fans on Monday with an Instagram post that revealed a photo with the couple's newborn. (Photo credit: Instagram/ Hilaria Baldwin)

  • Hilaria walked down the aisle with Alec Baldwin in 2012
  • They shared the news of their daughter's arrival on March 1
  • Hilaria welcomed the sixth child, five months after giving birth to Eduardo, their fifth