Umbilical cord between legs

Amy • Mom to 4 beautiful girls. 3/3/10, 4/27/14, 4/8/17, 3/7/19.

Does anyone have an ultrasound of where they can see the umbilical cord between the legs. I’m pretty sure that’s what I’m seeing in my kiddos, but I don’t actually know. (The 3 lines behind the arrow)