In her highly anticipated memoir, "The Woman in Me," pop superstar Britney Spears opens up about her personal life, shedding light on her past relationships and the oppressive conservatorship she lived under for over a decade. The book, released in January 2022, has provided fans and the public with a glimpse into the singer's struggles and triumphs. Here are some of the key revelations from her memoir:

First Kiss With Justin Timberlake: Britney reminisces about her early days with former boyfriend Justin Timberlake, revealing that they shared their first kiss while playing Truth or Dare during a cast sleepover. The moment occurred when they were both Mouseketeers on the Disney Channel's "The Mickey Mouse Club" in the early 1990s.

Abortion While Dating Justin Timberlake: In a heartbreaking admission, Britney discloses that she had a medical abortion while dating Justin Timberlake. She explains that Justin believed they were too young to become parents, leading her to make the agonizing decision. Britney admits she still questions whether she made the right choice.

Justin Dumped Her Over Text Message: Britney shockingly reveals that Justin ended their relationship by sending her a breakup text message. The devastating news left her speechless for months. Justin later flew to her hometown to personally deliver a letter expressing his inability to live without her.

Allegations of Cheating: Britney addresses the allegations that she cheated on Justin, stating that she made out with dancer-choreographer Wade Robson while she was dating him. However, she attributes her actions to the rumors of Justin's infidelity and the emotional turmoil she was experiencing.

Britney's Troubled Marriage: The memoir touches on Britney's brief marriage to childhood friend Jason Alexander, which lasted only 55 hours before being annulled. She refers to it as "innocent fun" but acknowledges her family's strong negative reaction.

The Night Britney Shaved Her Head: Britney candidly reveals that her decision to shave her head in 2007 was a response to the intense objectification and scrutiny she faced throughout her career. She states that it was a way for her to regain control and push back against the constant criticism.

Conservatorship Battle: Britney describes her battle against the conservatorship that has governed her life since 2008. She claims that she tried to fight for her freedom early on but ultimately prioritized being reunited with her children. She alleges that her father, Jamie Spears, controlled every aspect of her life, including her medication and personal choices.

Falling Out With Jamie Lynn Spears: Britney opens up about feeling betrayed by her sister, Jamie Lynn, during her involuntary rehab stay in 2019. She reveals that she reached out for help, only to be met with a response encouraging her to accept her circumstances. Their relationship has been strained, with Jamie Lynn releasing her own memoir, prompting public sparring between the siblings.

The #FreeBritney Movement: Britney details her late introduction to the #FreeBritney movement during her 2019 rehab stay. YouTube clips shared by a nurse exposed her to the public discussions surrounding her conservatorship. She expresses mixed emotions about the documentaries made about her, feeling hurt that some longtime friends participated without consulting her.

Britney's Road to Freedom: The book concludes with Britney's sense of relief when her father was removed as co-conservator in September 2021. She recalls being in Tahiti when she received the news that her conservatorship had been terminated entirely. Britney embraces her newfound freedom, using social media to express herself and celebrate her self-confidence.

As Britney Spears bares her soul in "The Woman in Me," fans and the world gain a deeper understanding of the struggles she endured and the resilience she displayed. The shocking revelations about her past relationships and the oppressive conservatorship provide important insight into her journey towards reclaiming her autonomy and living life on her own terms.

(Note: E! News has reached out for comment from relevant parties mentioned in the book but has yet to receive a response.)