I have studied the nub theory so closely and was excited to try and guess. The lady that did my NT scan was a little cold. I was like I’m going to record this my husband would love to see this and then told me I couldn’t record or take pictures 😬 then I asked if she had kids and she said a solid No!😬 I was just trying to make small talk and that wasn’t happening and then I was of course asking about the nub and it was an absolute no!😢 like she didn’t even want to entertain it a little. I wish we could have just looked and just wondered? 🥺 I’m just a sad. And this stupid app won’t even let me upload my picture for you to all guess🥺 Everything is so frustrating