updated 03/22/2012 AT 1:00 PM ET
•originally published 03/22/2012 AT 3:00 PM ET
“Reese still gets giddy when she talks about Jim,” a source tells PEOPLE. “She says that she feels so happy that he came in to her life. They are a great couple and bring out the best in each other.”
And the fact that the couple are expecting their first child together seems to be just the next natural step.
“Right after the wedding, Reese expressed a desire to have a baby with Jim,” says the source. What’s more, she included her other children in the decision.