Jupiter and Mars are not too hard to tell apart. Minus the moon and Venus, which is only visible near the horizon in the evening or near dawn, Jupiter is by far the brightest object in the sky. If you're looking up at a prominent star-light object that is clearly visible even in moonlight that saturates out most other stars, it likely is Jupiter.

Mars isn't quite so prominent, although still pretty easy to find if its out and you know where the ecliptic lies. Jupiter has a faintly yellow color to the naked eye, whereas Mars is noticably orange.

Because the moon is waxing currently, you likely saw one of these two planets.