Have any momma's on here had placenta previa? I found out I do at my 20 week scan. I'll be 28 weeks tomorrow and I have an ultrasound in 3 days to see if my placenta has moved out of the way. For anyone that had it, did your placenta move upward at some point? Did you need a c section? If I go in and it hasn't moved upward, will my doctor schedule a c section for 39 weeks or will she want to wait it out a little longer? I know most cases resolve themselves. I think I'm just paranoid and in my own head right now. My doctor told me that I have placenta previa and then basically told me to have a good day. No explanation or further planning. I had to rely on Google to understand what I have.