Nicole Brown Simpson Said O.J. Called Her a ‘Fat Pig’ When She Got Pregnant, Private Diary Reveals in New Doc

Nicole Brown Simpson believed that when she became pregnant, O.J. Simpson's verbal and physical abuse would stop. In reality O.J. only became more volatile.

In the first episode of Lifetime's new four-part documentary The Life & Murder of Nicole Brown Simpson, family and friends recount instances of abuse during their relationship that were subsequently revealed to have been written about and dated by Nicole in her personal diary, which she kept in a safe deposit box at her bank. (Investigators recovered the diary while investigating her murder.)

Denise Brown, one Nicole’s three sisters, says in the episode that Nicole’s first pregnancy with daughter Sydney in 1985 was difficult because O.J. “was not nice to her when she was pregnant.”

“He would always say ‘You’ve got such a fat a--. Why don’t you go on a diet?’ She was pregnant. She was pregnant when he would tell her that,” Denise recalls.

A screenshot of Nicole's diary is then shown, with an entry highlighting the words “you're a fat pig.”

Additionally, D'Anne Purcilly, a Brown family friend, claimed O.J. did not want Nicole to deliver vaginally or breastfeed.

“She said he wanted her to keep the same body she had.” Purcilly later adds, “You can see that that was some control things that he did with her.”

O.J. was accused and eventually acquitted of the brutal stabbing murders of Nicole and her friend Ron Goldman outside Nicole’s Los Angeles home on June 12, 1994. However, in 1997, he was found liable for the killings in a civil trial brought by the victims’ families and ordered to pay $33 million. 

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Nicole and O.J. share two children, Sydney, now 38, and son Justin, now 35. Their aunt, Dominique Brown, previously told PEOPLE that today, they're both parents and work in real estate — and prefer to stay out of the spotlight.

“At this point, I think they would prefer to just stay low-key and raise their families,” Brown told PEOPLE in May.

The Lifetime documentary, which premiered on June 1, was released ahead of the 30th anniversary of the murders and nearly two months after O.J.’s death from cancer at the age of 76.

If you are experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-7233, or go to thehotline.org. All calls are toll-free and confidential. The hotline is available 24/7 in more than 170 languages.

The Life & Murder of Nicole Brown Simpson is airing over two nights on June 1 and June 2 on Lifetime.