The couple welcomed son Raphael into the world but Ainsley says they are keen to add to their brood in the near future, reported Contactmusic.
"I'd love more children. Guy and I have always wanted a big family. It's something we planned all along," she said.
Ainsley, who helps raise Ritchie's two sons Rocco, 11, and six-year-old David from his previous marriage to Madonna, said Rocco and David love being big brothers to the baby and always want to help out.
"This is the first time I've been a biological mother but we've got the two big boys and they absolutely dote on Raph. They're always dancing with him and wanting to play with him."
