The 32-year-old rapper has opened up about her decision to have a termination when she was just a teenager in high school and admits it is a decision that has "haunted" her "all (her) life".
In an interview with Rolling Stone magazine, she said: "I thought I was going to die. I was a teenager. It was the hardest thing I'd ever gone through."
Nicki moved from Trinidad and Tobago to New York as a child and went on to study at the Fiorello H. LaGuardia High School of Music and Art and Performing Arts. It was while she was studying at the school that she fell pregnant and the father was older boy from Queens she was dating.
The Anaconda hitmaker knew at the time she couldn't go ahead with the pregnancy because she wasn't in a position to care for a baby properly.
She added: "It'd be contradictory if I said I wasn't pro-choice. I wasn't ready. I didn't have anything to offer a child."
Nicki, 32, has used her music to express her feelings about the abortion, touching on what happened on the track Autobiography, from her 2008 mixtape Sucka Free, and on her single All Things Go - which features on her latest album The Pinkprint.
In All Things Go she raps about her wishes for her younger brother Micaiah 'Caiah' Maraj and wonders what her child would have been like.
In the lyrics, Nicki - whose real name is Onika Tanya Maraj - rhymes: "I want Caiah to go to college, just to say we did it. My child with Aaron would have been 16 any minute / so in some ways I feel like Caiah is the both of them / It's like he's Caiah's little angel, looking over him."