I could use some help?

Ellie 🤱🏼👩‍👧‍👧

I really don’t understand nub theory or skull theory so wondering if anyone in here can help me or let me know what you think?

This scan was done when I was 12 weeks 4 days I’m now 16 weeks 1 day. Next scan isn’t till 25th of April 😩

Just to say me and my partner were really hoping for a boy as we already have a girl 😐

Update on this......

ITS A GIRL! 💞