Nub theory guesses please!

[lollyls]

This is a scan taken at exactly 12 weeks. Would be so grateful whether you think it’s a boy or a girl. First picture nub most visible. The other two pictures are just for extra info but i don’t think you can really see much.https://uploads.tapatalk-cdn.com/20240216/b623de76d15a4e1568c368eff4dfd5a3.jpg
https://uploads.tapatalk-cdn.com/20240216/88d0d0d57614c4368096ff3a69c6f6c1.jpg
https://uploads.tapatalk-cdn.com/20240216/18e6f3eee0154698f26615ec5bb525bf.jpg


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[atomic sagebrush]

It's too early for me to guess. The nub looks flat but I've seen nubs rise even into the 13th week. I prefer guesses at the end ot the 12th week gestation or 13th week.