Nick Cannon has fired off at prying journalists for fuelling rumours his wife Mariah Carey is pregnant, insisting the singer will address the reports "directly" when she is ready.

Speculation has swirled around the couple since Carey pulled out of a Tyler Perry movie over mysterious health concerns in June (10), but she's yet to confirm or deny whether she's a mum-to-be.

Cannon finally spoke up last month (Jul10), telling Star "Mariah is not pregnant" - but new photos of the singer performing in Brazil and sporting what looks like a fuller figure have raised fresh questions about the baby news.

And so Cannon has spoken out once again, insisting his wife will issue comment when the time is right.

Ranting in a radio interview on New York's 92.3 FM on Monday (23Aug10), he said, "I've said it before and I'll say it time and time again - when my wife feels like talking about whatever she wants to talk about, you will hear it directly from her.

"Honestly... I say this to you so you can tell whoever it is you've got to tell, we all know it's extremely personal, and it is for a woman to deal with things with her body, and especially when dealing with the idea of childbirth and all that stuff.

"We know that we're public figures... but that's something that you want to keep near and dear... until you're 100 per cent sure in any situation... There's a certain time limit that you're supposed to wait before you actually can officially say that you are (pregnant).

"You've got to take all those things into factor and it gets really heightened when you're one of the most famous people in the world because you don't want to mislead anybody."

Carey and Cannon wed after a whirlwind romance in 2008.