I completely forgot to post an update about the little girl. I had my big ultra sound about 2 weeks ago. Most of the fun was already gone because already know she is a girl but I still make them check at every ultrasound. They also needed to make sure the cyst was really gone. Apparently the perinatologist forgot to write that part down in my records, even though I remember him saying it was gone. Thankfully it is still gone. They did a bunch of measurements and everything still looks fine. No markers for any chromosome issues.
My Mom got to go with me this time. She had never soon an ultrasound, so it was really cool for her to get to experience it. I even got to get a couple pictures of the little lady in 3-D. I have to go for another one in 2 weeks to check the bone measurement. I will get to see her again in 3-D. Hopefully this time she behaves better.
Here are some pictures from the appt.
She's still a she:)

This is the brain. No dark spots means no cyst, YAY!

Profile view, her face and belly

3-D picture. Its her profile with her arm up in the air. Its kind of hard to make out at first.