Gordon, 49, already has 17-year-old Megan, 16-year-old twins Holly and Jack and Matilda, 14, with his 41-year-old wife Tana and the couple are to become parents again.
Tana is due to give birth in September this year, although Gordon is "worried" the couple will have another girl and he will have to ward off four boyfriends in the future, reported Us magazine.
Speaking to James Corden on "The Late Late Show", Ramsay said, "We have three girls and a boy ... And one more on the way. I'm nervous. I'm just worried, obviously I'd be happy with another girl but four girls ... Four weddings ... Four Sweet 16s ... Four boyfriends."
"She's excited, she's doing well, she's all good thank you."
Tana and Gordon, who married in 1996, will be celebrating their 20th wedding anniversary this year - as well as the chef's 50th birthday - and have talked about renewing their wedding vows when they "find the time".