Jessica Biel is an actress, new mom and Justin Timberlake's wife — and she's a newly-minted sex educator, too.

The onetime Seventh Heaven star has announced a series of videos made with Saundra Pelletier, founder of the nonprofit WomenCareGlobal and CEO of biotech company Evofem. Biel told Glamour that the project was inspired by her own lack of knowledge regarding reproductive health, which became evident when she and Timberlake were trying to conceive.

"Now what happens?" she asked herself, after going off of birth control. "I've been on the Pill for so long; how hard will it be to get pregnant?" This only brought up more questions about infertility and what physically happens during the whole process. "Suddenly I realized I really didn't know what's going on inside my own body," Biel said. "It was shocking."

Her need to learn more led her to Pelletier, who'd been working to provide contraception and feminine care products to women in developing countries. Together, the two decided to turn their attention stateside and teach American women what's going on with their bodies. "More than half of our nation's pregnancies are unplanned, and just 22 states require public schools to teach sex education," Pelletier told Glamour. "Jessica and I realized we can help change this."

The videos will discuss periods (of her first, Biel says, "I was in a school play, wearing a gray beard and this pad the size of a skateboard and thinking, What is happening to me?"), contraception and some seldom-discussed topics that girls and women might have questions about. Biel says relatable personal stories will play a role, and "the tone is informative but also goofy, smart, witty."

It sounds like a positive and much-needed project. You can watch Pelletier introduce the series below with the question, "If you don't tell them, then who will?"