Michelle Obama who chronicled her journey to motherhood in her memoir, Becoming, revealed that she and her husband, ex-President Barack Obama, had their two children Malia and Sasha - through the in-vitro fertilisation (IVF).
In Becoming, Mrs Obama says she would "never forgive" President Trump for championing the "birther" theory that her husband was not born in the U.S., according to excerpts obtained by U.S. media.
In an interview with Robin Roberts, which aired in part on Good Morning America on Friday, the former first lady said she made a decision to come public with her painful experience to help others who have had to go through a similar situation.
"We sit in our own pain, thinking that somehow we're broken", she said, adding that "it's important to talk to young mothers about the fact that miscarriages happen". "And I realized that as I was 34 and 35".
She also reflects on early struggles in her marriage as Obama began his political career.
In excerpts from her memoir, Becoming, published by ABC News, Obama speaks about her beginnings with her husband of 26 years.
Obama does not mince words in her upcoming book about the current administration, describing her shock when she learned Donald Trump would be her husband's successor. "She got paid a lot of money to write a book and they always insisted you come up with controversial".
The former first lady said she felt "lost and alone" after suffering the miscarriage. This was said during Michelle's interview broadcast on Friday on ABC's Good Morning America breakfast show.
She also denounced Trump's years-long "birther" campaign questioning her husband's citizenship, calling it bigoted and risky, "deliberately meant to stir up the wingnuts and kooks". "But it was also risky, deliberately meant to stir up the wingnuts and kooks".
"What if someone with an unstable mind loaded a gun and drove to Washington", Obama writes. What if that person went looking for our girls? Her "sweet, attentive husband" was at the state legislature, "leaving me largely on my own to manipulate my reproductive system into peak efficiency". She accused Trump of "stalk [ing]" Clinton during an election debate by following her around the stage, standing near her and "trying to diminish her presence".
She recalls her reaction when she heard Trump's Access Hollywood video where he brags about assaulting women, saying her "body buzzed with fury after hearing that tape". "I continue to be put off by the nastiness".
In her book, Obama also opens up about her husband's presidential run in 2007.
Michelle Obama's full interview will air on ABC at 9PM EST Sunday.