Amber Rose -- Wiz Khalifa is My HUSBAND!!!

Seems the wedding rumors are true ... because Amber Rose says Wiz Khalifa ain't just her baby daddy anymore .... he's also her HUSBAND!!

It's unclear when and where the two tied the knot ... but Amber definitely let it slip when we shot her in L.A. yesterday.

We had just given Amber a Ninja Turtles ice cream bar -- because she loves ice cream -- when she said, "My husband loves Ninja Turtles."

Fact: Wiz Khalifa has a NINJA TURTLES TATTOO on his leg!

Boom. TMZ with the scoop.