Jennifer Lopez

Jennifer Lopez and husband Marc Anthony have re-fuelled rumours that they are expecting a child after Lopez recently closed a posh baby store down for a private shopping spree.

The Jenny From the Block singer had exclusive Petit Tresor in Los Angeles shut their doors for 45 minutes last month so she could shop uninterrupted.

A source tells MSNBC's The Scoop: "She came with some woman, maybe a relative or an assistant, entered through the back, and bought thousands of dollars worth of things for a baby girl."

The store is a favorite with celebrity mums and mums-to-be, including Britney Spears and Katie Holmes.

When asked about the star's alleged shopping spree, a spokeswoman for Lopez said: "She's not pregnant."

Anthony also made headlines last month when he was seen buying an expensive diaper bag on trendy Melrose Avenue in Los Angeles.