boy or girl nub?

Hi all,
This is my forth child, I have three boys already.
I went for a 12 weeks scan a few weeks ago and the sonogram tech keep changing her mind regarding the gender and it all ended with a 50/50 chance.
Could you have look please?
I know it isn't the very best of pictures, but it's all I got.
Thanks!

Attachment 1086
Attachment 1087

I think girl...

Anyone else want to take a guess?
I'm finding it so hard to have to wait a whole month for my next scan..

I think its a girl...

I am leaning girl.

I can't tell sorry!

first pic i think i see girly nub... goodluck xx

I don't think the nub is visible enough, but skull looks girly!

I so hope you're right, you all seam to know what you're talking about.
My gut feeling is telling me it's another boy, but my hope is definitely growing with your comments..
thanks for looking i'm ever so grateful for your input on this.

I don't see a nub to guess from.