Jogging For Two
Experts say pregnant women can continue running...if they do it right.
Kelly Perkins looks a lot like most of the runners jogging through Central Park, but she's actually working out for two.
She's seven months along with her first child.
Her doctor told her jogging while pregnant is fine, as long as she's careful.
The American Congress of Obstetricians and Gynecologists actually says it is probably okay to continue running through pregnancy as long as you were a runner beforehand, and of course you stay in close contact with your physician.
You probably will have to adjust your routine.
"Most doctors now are saying it's safe and healthy and they actually advise women to continue being active and continue running through their pregnancies," says Runner's World Senior Editor Katie Neitz.
For Kelly, running is starting to get a little more challenging.
Recently she's noticed some pain in her knees, but she's still hoping to run up to her delivery.
"If I can, then that's what I'll do. If I can't then that's okay too," she says. "I'm just happy I made it this far."
She is pacing herself, because after all pregnancy is more like a marathon than a sprint.