media_removed_toofab 102011

Brenda Song
and Trace Cyrus shocked everyone last month when it was reported the Disney star was expecting their first child together ... and then things got even stranger.

The two never publicly confirmed the news themselves and the only thing Trace Cyrus has been tweeting about lately is getting a new tattoo.

Then Brenda's mom reportedly said her daughter is NOT pregnant, telling the questionable Star "It's very upsetting to our family because of what I'm going through and it's not how we raised her."

The couple was spotted together at a mall in Sherman Oaks, where Brenda was wearing some very baggy clothes -- hiding her belly (and potential baby bump) under a belt and flowy top.

Check out the Now & Then shot above -- do you think she's pregnant?

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