She's one proud mama!

In celebration of her daughter's first birthday earlier this week, Alyssa Milano shared a photo of her breastfeeding Elizabella in the hospital shortly after her birth.

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"Happy Birthday, my beautiful Elizabella," the 42-year-old wrote. "You've taught me that my heart has no end. You were the missing piece to my soul. Thank you for choosing me."

Scroll through the gallery below for more stars who've shared nursing pics on social media!