Amber Tamblyn is officially one proud mama!
The Sisterhood of the Traveling Pants star has welcomed a baby girl with husband David Cross. The couple's newest bundle of joy is both Amber and David's first child. She shared the news on her Instagram page.
One person who's probably especially excited for the arrival of Baby Cross is Amber's BFF and former co-star, Blake Lively. When the 33-year-old first shared she was expecting in late October, fellow new mom Blake expressed her well wishes with an extra precious shot of herself rubbing Amber's baby belly.