Upton and Chmerkovskiy were still on the party circuit [Sunday] night, this time hitting a VMA party at Little Italy hotspot Goldbar.

"There was lots of P.D.A.," says one insider.

Tongues started wagging when some guests said a glowing Upton, still wearing white, appeared to have been sporting a baby bump. Speculation was further fueled by the fact the 21-year-old model didn't drink booze at the bash.