The 'This is 40' star left four-month-old Noah in the care of husband Brian Austin Green's parents while the couple attended Golden Globe Awards, reported Hollywood Life.
"I'm really particular about everything and his mom is really good about making sure she does everything perfect. I'm overly worried about everything all of the time," she said during the red carpet.
However, Green added, "She's not overly worried - she's a good mom."
Fox, 26, who looked gorgeous in a Dolce & Gabbana gown, also admitted it had not taken her long to get back in shape after having Noah, claiming her figure returned to normal straight away.
"My baby was kind of small and my pregnancy was small - I walked out of the hospital kind of like this. Not to be crazy, but... It is what it is," she added.
