Get ready: your head is about to spin.

A principal dancer for the New York City Ballet Company posted a video to her Instagram page [3] this week that showed her pulling off more than a dozen pirouettes . . . at 26 weeks pregnant.

As she spins and spins, Ashley Bouder maintains perfect form and posture. Aside from the hint of a baby bump in her leotard, you'd never know she was more than six months pregnant. The ballerina, who's expecting her first child in April, hasn't taken so much as a break from the famed company, and she made that point clear with her caption on the video, which read, "Still spinning away in ballet class."

Carry on, mama.