"I think that even when I was having a baby myself and even after I had two babies myself, that you can't even grasp the reality of it until that baby is there," the 67-year-old actress told Us Weekly on Friday. "So even though we're very excited and the sonograms are beautiful and we've been shopping, it's still -- I don't think you actually understand until there's a human being there. So we're still in that kind of state, but we're very excited."
Martino confirmed her pregnancy on Twitter last week.
"Who run the world? GIRLS! #BabyGirlMartino," she wrote alongside a photo of baby shoes.
"This baby girl keeps bringing unexpected new girlfriends in to my life! It's so cool! Love me some strong women. #girlsrule," she added Friday.
Martino's husband, retired American soccer player Kyle Martino, tweeted:
"Found out our child will never be on the @ussoccer team....but may be on the @ussoccer_wnt. #ItsAGirl!!!"
Swim Week Miami Beach 2014 [PHOTOS]