Lets just say if it's a boy, we saw no lines at all, just huge balls. A girl is 3 lines though. They say it looks like a hamburger. LOL. I know on Tehya's scan it did.

If your still not 100% sure and want to be why not go for another scan later on in your pregnancy. I had a 4d scan done at 31 weeks with Tehya, even though we were very certain with the earlier ones.