Their relationship has been plagued by speculation since they began dating, but once Blac Chyna announced she was expecting Rob Kardashian's baby earlier this year, the rumour mill went into overdrive.

And it seems like the constant scrutiny has gotten the better of Chyna who recently decided to undergo a test to prove Rob is, indeed, the father of her unborn child.

The star, who shares a son with Tyga, explained that she felt the need to prove paternity in order to dismiss internet rumours for good.

"This might sound f*cked up but a part of me wants to take a paternity test," she said in the finale of the couple's reality TV show. "I know it’s Rob’s child, I’ve only been with Rob since we started dating."

"It’s just to shut down rumours on the internet saying that it might be two other people," she added.

But after officially confirming that the Kardashian is the father of her child, Chyna still expresses concern over their relationship.

"I don’t even know if I want to stay with Rob. I don’t know if I want to do this no more with him. This pregnancy, I thought it would be different," she admitted.

"I’ve done everything that you possibly could do. I offered to go to therapy with him, he said he doesn’t want to do that."

Sounding like she's almost at breaking point, the soon-to-be mum-of-two said: "I literally would have to change everything about myself or he’s going to have to change, but I feel like at this rate, Rob ain’t changing and I don’t have time."

Well, that doesn't sound promising.