Boy or girl guesses 12 and 15 week scans, thanks.

Hi I'm new to this post. I have posted up
Scan pictures first one is 12 weeks and 2nd two are at 15 weeks taken yesterday. I don't think they give much away myself, but I have no idea what to look for, any guesses welcome. Many thanks.

The 12 week one I thnk I might see a boy nub

I think boy x

Thanks for your guesses girls, boy would be great. All the best.

I don't see any clues.