The Anaconda hitmaker introduced the rapper onstage in Pennsylvania by telling the crowd to "make some noise for my baby father", suggesting she might be pregnant.

She later took to Twitter.com and offered up a series of laughing emojis as a response to one fan keen for more information about her possible pregnancy, suggesting it was just a joke.

The headline-grabbing moment came just weeks after Meek Mill told a radio show he wished his girlfriend was expecting.

Minaj reacted on Twitter, writing: ''No matter wut (what) he, or anyone else says, Onika Tanya Maraj won't b pushing anyone out her vajayjay, until she's married."