Quoting Diamondmama:" Ok so i had a complete placenta previa with my 3rd child...I was schedualed for a c section but then ... [snip!] ... this child because i know u are more likely to have placenta previa if u have had one before.. Has this happened to anyone else"
I had low lying placenta with #1, and marginal placenta previa with #2.
with number two I also had undiagnosed vasa previa and it's an absolute miracle my daughter is alive.
if your placenta is low again make sure they look for velamentous cord insertion and vasa previa. it's rare but worth checking for. (low lying placenta is a risk factor for it)