hm, correct me if I'm wrong, but your problem is not that you got a real girl hair cut, but just that your hair is rather long for a male?
Well, think about that: what do the "normal" guys do when they want hair long enough to put it in a pony tail? Until then they just let it grow, maybe put it behind their ears, maybe fixing it with some hairspray or styling gel.
How "conspicious" it will look depends on your age of course (my little brother (16) and many guys my age (18) just wear their hair long without doing much with it), but if somebody askes just tell them you want to try that pony tail look--every sensible person will understand that your hair needs to grow first.

I don't think you need to worry about that. If the rest of you just looks like any other guy, nobody will think too much about your hair.