Nub experts, please be patience with me. I guess the more I look at the u/s I see lines, shadows, etc., that looks all too blurry to me. I look at some other u/s and they somewhat look different too. I am not trying to be stupid, but I just want to confirm the "nub" that I'm looking at in my photo is the semi-round pointy white dots pointing upward at 90 degree? I never heard of nub with my two daughters until someone at work mentioned to me 2 weeks ago. Its all very interesting and I'm really nervous to find out. I love my 2 girls and what if I have another one, I will never hear the end of "girl, again or are you going to try for a boy?" Thank you for educating me ladies! I appreciate your time!