That is a super good nub shot!
I’m really hopeful you get your girl hun, I’ll show you a pic of my daughter’s scan at 14 weeks.
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I found the main difference between her and the boys was the face protrudes quite a bit more, and your baby’s face is also farther out.
I tend to shy away from guessing on nub as they can rise up to 14 weeks. The nub in the picture looks borderline like it could rise.
Are you going to find out at 16 weeks? I have all my fingers crossed for you, but I would try and prepare for a boy as best you can. I had bad gender disappointment with my second because I was sure he was a girl. The third time I mentally prepared for a boy and it really helped. Then if baby is a girl it’ll be extra exciting! I’m really hopeful for you