Placenta previa is the implantation of the placenta in the lower part of the matrix.
There are different types:
Total placenta previa: The placenta has evolved so low that the outlet cover.
Partial placenta previa: The placenta is low, but does not fully cover the outlet.
[...]
Although bleeding after thirteenth week in much less frequent, not necessarily mean to be an abortion.
BLEEDING IN THE SECOND QUARTER MAY BE DUE TO:
PLACENTA PREVIA:
In some women, the placenta is implanted in the bottom of the uterus, below normal, partially or completely blocking the [...]
Placenta previa is the implantation of the placenta in the lower part of the matrix.
There are different types:
Total placenta previa: The placenta has evolved so low that the outlet cover.
Partial placenta previa: The placenta is low, but does not fully cover the outlet.
[...]