"I was so young and it just seemed to be the norm. Everyone was going through similar stuff," she continues. "I had no way of knowing if I was going through it worse. I was juggling my feelings and it makes me sad that there are girls still going through that 15 years after I went through it."
Back in late 2010, Rivera called it quits with her now-husband, Ryan Dorsey, in order to focus on her career. Just a few weeks after the breakup, she found out she was pregnant with the actor's child. She decided to keep the news to herself and scheduled an abortion during a day off from filming Glee.
"It was very scary to open up about everything," Rivera explains. "It's not something a lot of people talk about, but I think they should. I know some people might read it and say, 'What the hell?' But I hope someone out there gets something out of it."
The brunette beauty eventually got back together with Dorsey, and the two said "I do" in Cabo San Lucas, Mexico, in July 2014, just months after Rivera called off her engagement to rapper Big Sean. The pair is now parents to son Josey, who will celebrate his 1-year birthday on Sept. 17.
"I hope Josey will read it one day," Rivera adds. "I hope it gives him a better perspective on the issues women face."