is there a nub???

so ultrasound tech said girl but im not convinced yet lol i didnt see the classic 3 lines like i did with all my girls. i seen one line across because she could only get a view from behind , near the bum. i see a nub in this one! do u?
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I *think* I can see a nub, and if so it looks girly to me.... However I wouldn't put to much weight on this guess as it's not a great pic

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Thank you!