Nicole pregnant with second child?

Joel posted this message on the official Good Charlotte Blog:
What's better than winning an Oscar? I am so happy to tell everyone that Harlow is going to be a big sister! God has truly blessed my family. Hope your all feeling as good as i am right now.........
Is Nicole pregnant with her second child or they will adopt a baby sister or brother for their one-year-old daughter Harlow? What do you think?