Rap superstar Jay Z has shot down rumours suggesting his wife Beyonce is pregnant again.

The Crazy in Love hitmaker sent gossips into a spin last weekend (22-23Sep12) after she was photographed with what appeared to be a small baby bump under her figure-hugging Roberto Cavalli dress, sparking speculation the hip-hop supercouple was expecting a sibling for baby daughter Blue Ivy.

However, Jay Z has dismissed the reports in a new interview with U.S. Tv network E!.

When asked if he and Beyonce are having another child, he replies, "Not in nine months, absolutely not."

Clarifying his remarks, he adds, "Not in one, two, three, four, five, six, seven, eight or nine months."

The superstars, who wed in 2008, became first-time parents to little Blue Ivy in January (12).