Crappy news at anatomy scan

So we had our anatomy scan this morning. Everything looked good. Baby is healthy, measuring a week and a half behind so my new projected due date is October 5th. Didn't get a good view of the baby's face or profile, but that's ok. Then at the very end when the dr came in she told us that I currently have complete placenta previa. If I am 18 weeks 4 days it can still move as things progress, but a complete previa is the least likely to move. Completely stressing out now. 😕 We will have another scan around 28 weeks to check on the placenta, so I know I shouldn't be stressing too much yet, but that's easier said than done.