<prompt> Uterine bleeding at 12 weeks gestation without any cervical dilation is an indication ofIncomplete aboionThreatened aboionMissed aboionInevitable aboion  <response>: Bleeding occurs in about 30 to 40of human gestations before 20 weeks of pregnancy, with about half of these pregnancies ending in spontaneous aboion. A threatened aboion takes place when this uterine bleeding occurs without any cervical dilation or effacement 