Three lines means it's a girl!! :)
That's what thought. It's my 20 week scan next week but i don't want to find out. Just loving the guessing.
But at 12 weeks it could be too soon to tell.
If there are 3 white lines in the genital area, that indicates that it is a girl! That is how I found out I am having a girl. :)
I am not sure maybe you should bring it up with your doctor at your next appt. Is it something you are concerned about?
At the bottom of the picture below the stomach.
Where are you seeing these lines?