MHargitay041511_08_X17230WM.jpgMariska Hargitay is now a mother once again!

The Law and Order actress, married to Peter Hermann, adopted baby boy Andrew Nicolas Hargitay Hermann ... just six months after adopting daughter Amaya Josephine, according to People.

Hargitay, 47, tells the mag:

    “We never in a million years thought it would happen this quickly, but something inside of us knew that this was right, and we said, ‘Yes, yes, yes!’ We knew this was our guy. Everything about it felt right. It felt divinely right.”

The actress is also mom to 5-year-old son, August.