When Is Kate Middleton Due? A Look At The Duchess' Outfits Over The Past 12 Weeks (PHOTOS)

A loooong look back.

Now that we know the Duke and Duchess of Cambridge are expecting a baby, we can't help but wonder when it all started. Tabloids have speculated since before the royal wedding, and baby rumors recently reached a fever pitch when Kate debuted what some called a "fuller face" this autumn.

Though no one's confirmed any dates, the BBC reports that that the Duchess of Cambridge is thought to have been pregnant for "less than 12 weeks," which would put her due date in May/June 2013.

Speculation that Kate Middleton was pregnant first swelled recently when Catherine was photographed drinking only water (not wine) on her and Will's royal tour in Asia in September 2012. (Star magazine also claimed to spot a hint of a baby bump when Kate wore her printed Prabal Gurung spring 2012 dress on the couple's Singapore stop.) The rumors didn't stop coming, as a "close friend" claimed Kate and Will would announce the news in December.

Assuming she's been pregnant for the full 12 weeks (why not?), that means Catherine has been expecting since mid-September. (Again, this is pure speculation.) But for fun, we wanted to see if we could note any changes in Kate's style.

See Kate's pre-maternity style from September through present below! What do you think she'll wear now?

PHOTOS:

November 30, 2012

How Long Has Kate Middleton Been Pregnant?

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