Megan Fox is now an official MILF!

The "Transformers" actress and her husband Brian Austin Green announced that the couple became parents Sept. 27 with the birth of their son Noah Shannon. 

Fox posted the following message on her Facebook page:

We have been very lucky to have had a peaceful few weeks at home, but I would like to release this myself before others do. I gave birth to our son Noah Shannon Green on September 27th. He is healthy, happy, and perfect. We are humbled to have the opportunity to call ourselves the parents of this beautiful soul and I am forever grateful to God for allowing me to know this kind of boundless, immaculate love. Thanks to those of you who wish to send your positive energy and well wishes. May God bless you and your families abundantly.

The couple have been married since 2010. Green has a son, 10-year-old Kassius, from a previous relationship with actress Vanessa Marcil.