Hemsworth married Spanish actress Pataky during the 2010 Christmas holiday after dating for a few months. They announced the pregnancy in January, reported Aceshowbiz.
Details surrounding the baby are scarce but is said that they have namded the baby India Rose. Both mother and child are reportedly fine and have returned home.
"Chris and I are ecstatic, very happy and excited. Since it's our first child we don't care if it's a boy or girl, our only wish is that it's healthy," Pataky had said earlier.