Ultrasound question

Kortnie
Have any of you had your 20 week ultrasound show you measuring ahead. I am measuring almost 2 weeks ahead. Also, the baby had more than normal amniotic fluid. I  don't see the doc for another two weeks and when we asked the ultrasound tech about it she said it wasn't really good or bad. I was just wondering if anyone else has had this and what the result was. Thanks!