Tom Cruise and Katie HolmesTom Cruise and Katie HolmesWait for it...

Tom Cruise and Katie Holmes could well know whether they're having a little baby boy or girl.

The baby is due this month and we're eagerly awaiting the news.

But a recent shopping trip seems to have provided a rather big hint.

The pair bought furniture to kit out the bub's new nursery, and their choices suggest they're pretty sure it's going to be a daughter.

Tom and Katie spent $20,000 (£11,600) in LA's posh Petit Tresor boutique, and their haul included: nursery rhyme wallpaper, a nappy bag, a stuffed elephant and a teddy, as well as lots of designer baby clothes.

The store's co-owner, Samantha Winch, told Access Hollywood: "It's very easy to rack up an expensive bill, especially when you are excited like Katie is and it's your first baby."

Pregnant Katie Holmes and Tom CruiseThe growing baby bumpOwner Nina Takesh added: "The bear was adored by Katie and Tom. And Katie can't stop squeezing the elephant."

We won't be buying any pink booties until we're absolutely sure.