The 39-year-old actress and her husband Christopher Gavigan, co-founder of Jessica Alba's lifestyle business The Honest Company, celebrated the arrival of their daughter Josephine Kate Gavigan on 2 May (16).

Capshaw debuted the newborn on Instagram on Monday night (09May16) with a photograph of the sleeping baby, and wrote in the caption, “I am endlessly grateful for her safe arrival and my heart is so full of love that it threatens to burst."

Gavigan added, “Welcome to our newest & sweetest little one. Our hearts are bursting in so many ways.”

The couple, who have been married since 2004, has three other children; son Luke, eight, and daughters Eve, five, and Poppy, three.