We grew up with Danica McKellar and her TV alter ego, Winnie Cooper, on The Wonder Years. Since then she’s shown her stuff on film and TV and demystified math with her bestselling books Math Doesn’t Suck and Kiss My Math. Her third book, Hot X: Algebra Exposed, will be on shelves in August. And now the 35-year-old Southern California native happily anticipates the birth of her first child.

This self-described "tough chick" is exploring new territory with her second child (a boy!) due in August. The former JAG star—now in her fourth season as Denise Sherwood on Lifetime’s hit drama, Army Wives. Here, exclusive to Pregnancy, the 41 year old talks morning sickness, motherhood, and much more. Interview by Bonnie Siegler.

Like prenatal yoga, Pilates can help you connect with your body during pregnancy—and reduce your aches and pains. A system of strengthening and stretching exercises created nearly 100 years ago, Pilates is a complete workout that concentrates on your “powerhouse”—the stomach, hips, lower back, and buttocks—where your body needs to be strongest to support a growing baby and maintain good posture. Pilates also improves flexibility and tones the pelvic floor, helping you stay fit and get ready to give birth. Check out these great Pilates stretches for pregnancy, demonstrated by actress Bree Turner.

Yes, she plays a mom in The Secret Life of the American Teenager. In fact, her recent pregnancy with her now 10-month-old twins was written into the show’s story line. At 42, this mother of 3 is also the author of a new book. Interview by: Bonnie Siegler.

She cracked us up in Saved by the Bell and rocked the role of vixen in Beverly Hills 90210. Now starring in USA’s White Collar and expecting her first baby in May, Tiffani’s taking it all in stride.

He’s “blossomed” as a father to 4-year-old Charli and Libby, due in April. So we sat down with Joey Lawrence and his wife, Chandie, to talk about raising little girls, pregnancy, and his new show! Interview by Abigail Tuller.

Take this quiz to find out just how clueless your partner is…as if you didn’t already know. By Jeremy Greenberg.

Last year I was a rough-and-tumble pinup girl, now I’m the mom next door! By Kendra Baskett.

As Judy Reyes’ much-loved role on Scrubs winds down, this outspoken actress shares how the upcoming birth of her baby daughter really has her thinking. Interview by Abigail Tuller.

5 Minutes With... Lindasy Davenport. This pro tennis great fits us in—just three weeks postpartum—to explain how life with kids measures up to her days on the court. By Amy Levin-Epstein.