Jenna Lee and Husband Leif Welcome Baby Boy!

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Congrats to Jenna Lee & Her Husband, Who Are Expecting Baby #2

Jenna Lee knows a thing or two about staying fit.

The daughter of former NFL quarterback Bob Lee has taken on grueling events like the Tough Mudder, the Marine Corps Marathon and a triathlon in recent years.

And while she was expecting her son, Trace, Jenna even completed an 800-meter race, inspired by an Olympic athlete who didn't let pregnancy stop her from competing.

To stay fit this time around, the Happening Now co-host is turning to prenatal Pilates. 

She teamed up on a video (above) with Pilates expert Andrea Van Zile to show off a workout routine that's specifically geared toward pregnant women.

And for even more cardio, she just tries to keep up with Trace...