Hi, I had my 12 week scan today and everything seems to be developing normally so far, although it’s too early to tell properly. I had chickenpox so baby is at risk of abnormalities from Fetal Varicella Syndrome so this was a big relief 
I actually saw the baby’s bum from underneath and there was a very very slight protrusion between the legs but I would definitely say it looked more like a girl to my untrained eye. I haven’t got a photo of that view but what does everyone think according to nub theory? Thanks 