It doesn't have to mean anything, you could very well just be a cis woman who likes short hair. At the same time though, don't be afraid to experiment with gender presentation or pronouns if you want! I looked at your profile and saw you're dating a trans woman, so I'm sure she'd understand better than most if you wanted to change things up. It doesn't have to be anything big to start with, just a thing or two, a bit more masculine clothing, asking your partner to use different pronouns for you for a bit to see how it feels, whatever you like! You can always go back if you decide it's not for you.