Before I begin, I want to say that nubs can change between weeks 11 & 13. I've seen girly nubs that turn out to be boys &, a little less often, boy nubs that turn out to be girls. But, I spent a good while searching for clear (confirmed) nub shots in ultrasounds online around 11-12 weeks to compare them to my baby's 11-week ultrasound. I thought it was really fun & entertaining! Feel free to add your baby's 11-13 week nub shots below & we can all weigh in w/ gender guesses. Also, what do you think my baby is? Let's have some fun! *****Disclaimer: These baby's genders were not determined at 11-12 weeks, this is just what they looked like at that time. Later ultrasounds did confirm boy & girl).