After the operation she also confessed that she had had some plastic surgery on her intimate parts.
She wrote: "It turned out beautiful ... My doc is Walter Cruzalegui."
Xoana is not thought to be pregnant yet and there was no word on whether she had a father for her child lined up.
Online fans seemed to support the model's decisions with 'harubg' writing: "An incredible woman. I love you as you are Xoana. You are transparent and that I like. Continue being yourself."
However depending on the type and placement of implant used, breast augmentation surgery can leave women unable to breastfeed.