Vibrator

Ok so this may be a dumb question but my vibrator says it's waterproof. So is it safe to use in the shower??

Idk what brand or anything it is. My bf bought it for me and the box has no brand name on it..but box does say waterproof.

Curious cause I'm on my period and horny as hell and he's not around. I was gonna just hop in the shower with the toy...?