It's a little early to tell. A few can tell by the shape of the head. I think you need to wait until he/she is about 5 or 6 months old. She is very cute. Holly and I say "she" because it's just normal. I've only had girl beardies. I know Holly has only one male out of the 3 beardies she's had this last year.
Hehe sorry about that!
Lori is right I tend to referr to babies as "she" because my youngest is a girl so it just falls off the tongue.
"She" does have a slim head but Id say you'll have to wait about a month before you can tell for sure.
And not to worry, my male is the most spoilt of all! Boys like being spoilt rotten too ^_^