As expected, there were a lot of pro-life commenters dragging Miley for her message.
"So selfish!" wrote one person. "Killing people is healthcare? Maybe for you females but ripping hands and legs off an unborn baby isn't really healthcare for a baby. Start being responsible for other people."
Miley responded, "oh that's right you only jerk off while u Xbox live with a bunch of 14 year olds who's brains are just about as developed as yours."
However, an unexpected twist in this cake is a feminist baker who is accusing Miley of stealing her cake design.
The D.C.-based baker, Becca Rea-Holloway, has shared a side-by-side of her own "cake art" and Miley's. "It is a direct theft of my own original art work from May 2018, with no credit," Becca wrote. "It's literally my exact handwriting, message, and concept."
Miley spotted the post and apologised.
"We saw the image online and didn't realize it was yours," she commented. "We will absolutely tag you for your work."
She later explained how the cake was only for Instagram and would not be included in merch designs.
It's "not on the Marc Jacobs x Planned Parenthood hoodie we made to raise money and awareness for Planned Parenthood, which I know is also close to your heart," she said, adding, "thanks for sharing your art and inspiring us."
Unfortunately, her apology didn't go down well.
"This was not an oversight, it was blatantly and willfully neglectful and deceitful," Becca replied. "I would have been more than happy to work with you on a collaboration for this project, but instead my work was just copied without compensation."
Becca then explained how her original comment was deleted from Miley's post, and while she has updated the post to tag her Instagram, @thesweetfeminist, there isn't a mention of her in the caption.
This is not 'inspiration,' it's theft," she concluded.
WATCH Miley Cyrus viscously assaulted by crazy fan: