Nicki Minaj has sparked speculation she is pregnant.

The 'Anaconda' rapper made waves at the latest stop on her 'Pinkprint' tour by referring to boyfriend, rapper Meek Mill, as her ''baby father''.

Nicki sent fans into a frenzy at her concert in Burgettstown, Pennsylvania, on Friday night (07.08.15) with the bold statement as Meek joined her on stage.

She said: ''Make some noise for my baby father!''

However, the 32-year-old star later took to Twitter responding to one fan with numerous laughing emojis, indicating it was just a joke.

Just last month Nicki insisted she wouldn't be having a baby until she's married -- following Meek's boastful claim that he wishes she was pregnant.

The star said in a radio interview: ''Nicki ain't pregnant, but I wish.''

Nicki reacted on Twitter, writing: ''No matter wut he, or anyone else says, Onika Tanya Maraj won't b pushing anyone1 out her vajayjay, until she's married. Now check that (sic)''

The 'Bang Bang' rapper has previously expressed her desire to have children once she's tied the knot.

She said last year: ''I definitely will be married before I have my baby,'' she told the magazine. ''I've always felt like that since I was young; my mother always put that in my head.''