Should I call a girl back if she hasn't returned my voice mail?

Anonymous
I left a voice mail to a girl I'm attracted to saying that I didn't see her at the gym like we had been the previous weeks and how she was doing.

How long should I wait to call back or if I even call back?

Should I just chance it that I will bump in to her again at the gym?

Also if I do see her again, should I bring up the voice mail? Probably not right?

I just like her a lot and don't wanna come off as pushy/needy.

Thanks for your help.
Should I call a girl back if she hasn't returned my voice mail?
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