13 week ultrasound picture of clear nub, but still not sure. any guesses?

[kjmay14]

This is my baby at 13 weeks. You can see the nub circled but im not sure if its a boy or a girl. Does anyone have any guesses?

[queen-bee]

I think maybe boy

[Wanting-a-girl]

thinking boy... but baby is sitting up

[3boys]

I would also guess boy

[lovemy4]

Slight boy lean but it's tricky due to baby's position.

[hotdogz&boyz]

Funny baby position...but I would lean boyish too.

[Happylane]

But wouldn't you lean girl since nub looks forked?