Megan Fox's second baby boy has arrived. Megan Fox and her husband Brian Austin Green are already parents to 15-month-old son Noah. 

Megan Fox and Brian Austin Green's baby is here. Megan Fox, best known for her role in the "Transformers" movie series and her husband, Brian Austin Green,  best known for his part in  "Beverly Hills, 90210,"  welcomed their second child, a baby boy, on Feb. 13. 

Megan Fox and Green are also parents to Kassius, 12, who is Green's son from a previous relationship.

The couple hasn't released many details about the baby's birth are sparse. It has yet to be announced what the birthday is. When the Megan and Brian's first baby, Noah, was born, they didn't make an announcement for weeks.

Megan waited until mid-October to announce on Facebook, "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."

The first pregnancy was difficult for Megan Fox. In November she told ABC News "I've had rough first trimesters. But once you get into the second, it's fine after that."

This time around, Megan was too busy to notice, she told ABC News in November, "I don't have time to think about it, I have a 1-year-old running around. And then when you're working like 16 hours a day, there's no time for you at all."

Megan also had some help, Brian Brian told HollywoodLife.com in September 2013, "She is doing great, she did great the first time around. But I wouldn't wish the experience on anybody, I couldn't do it! I couldn't make a baby. It is unbelievable. I do whatever she asks for and I say 'Yes' no matter it may be."

In March 2013, Megan told Marie Claire "All I wanted to do my whole, whole life was have a baby and, now, I've finally done it. I just want to give Noah as much of myself as I can."

Megan told People Magazine "I think [Noah is] going to be an amazing big brother with time. I think he has an idea, but I don't think he understands that a baby will be living with us all of the time -  that will be an adjustment.'