Gender?

I know 12 weeks is too early to actually know just based off an ultrasound picture. I’ve seen multiple different methods of theories, like the nub and ramzi theory. I don’t know how accurate they are. But I want to know if anyone else has had success with these? I want to supply a picture of the ultrasound, and see what your thoughts are. I know it won’t be 100% accurate. I’m just curious and want an unbiased educated guess based on the nub and ramzi theories or similar theories. Thanks!