Confirmed boy but slight doubt!?

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Hi all 😊 I had a gender scan at 15 + 3 and was told boy. The only reason I'm slightly doubtful is first she said 'hang in its got the cord between its legs' wiggled the devise and said 'yep it's a boy' Just a tad concerned that it is the cord. I don't want to start buying things until I get a second opinion at my 20 weeks scan but thought I'd post the pics to see what you all thought. Also I can't tell whether the potty shot is between the legs or side on 😕 Thank you 😊 xxx
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Looks like a clear boy nub to me but at 15 weeks I'm not sure how accurate a nub is.

Looks like a boy. Cord looks like three lines floating out from the body.