Can someone tell me the sex of this plant ? Pics included!

Shes an auto blueberry 4 and a half weeks from seed. I started her with the aerogarden lights and have upgraded to 150w hps and additional cfl side lighting. I've looked at pics of males and females but I can't be certain it is a female, even though its and auto fem seed. So......... if anyone thinks they are certain about the sex please let me know what you think. Thanks in advance. oh and how does it look ? im a first time grower any advice ?

It looks like a female, assuming no hermy male flowers. Try to take pics under normal lighting for more responses.

First thing you will notice with males which wil normally give them away but not always! is their vigerous growth over the females . They are normally the tallest plants before preflowers.