I'm normally quite good with nubs but I'm unsure of this one and wouldn't be suprised either way. Its the bulbous end that is throwing me into thinking maybe boy as I'd have said a girl if it didn't raise up at the end. I'm going to lean slightly to a boy, but wouldn't be suprised at a girl either. Google a forum called in-gender, you can upload your scan onto the ultrasound forum and there are people that have been doing it years on there that can give a better insight, I got 100% girl guesses when I did mine, it was correct.