The "27 Dresses" star attended CinemaCon on Wednesday and it was her first trip away since giving birth to her son Joshua, who she has with her husband Josh Kelley, reported Entertainment Tonight.
"This is the first time that I have left him. He's just a little over three months now and I'm just here for one day and I thought, 'You know, it's irresponsible of me to, like, disrupt his whole schedule for one day just because I have an issue.'
The 38-year-old actress was also missing her two daughters - Nancy, eight, and four-year-old Adalaide.
"I should have moved things along because I was late and I needed to get going to make sure I got my flight this morning, but my middle [child], who used to be my baby, gave me this rare like snuggle session this morning.