I think it's the zoomed image. I have two boys and I dont see a clear scrotum on your scans. There's something in the middle...so it looks more like enlarged labia to me! I totally could be wrong though!! Best of luck!
(BOY) Caden 2009 (BOY) Everett 2011 Swayed PINK and due April 10th 2013 -first month swaying