A Woman's Period Is About Three Weeks Past Due

A woman's period is about three weeks past due. She is experiencing abdominal pain and pain when she urinates. What is happening to her?

A) She is showing typical first trimester symptoms of pregnancy.
B) She is having a miscarriage.
C) She is experiencing an ectopic pregnancy.
D) She is experiencing placenta previa.
E) She is pregnant and suffering from an incompetent cervix.