Umm are Tyga and Kylie Jenner engaged or worse ... married? Her latest Instagram snap is making us think -- yes!

Yesterday the 17-year-old ignited rumors that she is either married or engaged to her 25-year-old rapper boyfriend when she posted an Instagram highlighting her ring finger, which had dazzling new bling on it.

In the photo, Kylie, who is two weeks shy of turning 18, is wearing two rings on her wedding finger. Back in May, we noticed that the teen was wearing a diamond sparkler on her ring finger, which set off engagement rumors. But now the reality star has added a second ring -- a diamond encrusted band -- leading us to believe that the inappropriate duo may have secretly gotten hitched.

Some other damning evidence is that on Sunday night's episode of I Am Cait, Kylie may have let it slip that she was more than dating Tyga when Caitlyn's mom Esther gave her granddaughter a photo of her 17-year-old self.

"I thought you should have this. It's me when I was 17," the octogenarian said. But Caitlyn soon chimes in with, "Here's the kicker, she was 17 years old in this picture, and she was married." A second later, Kylie says, "Kind of like me."

We hope that this is only a joke since the brunette JUST "graduated" high school -- but given how Kris Jenner has been about about her daughter and Tyga's illegal relationship, nothing would surprise us.