<prompt> Difference between ectopic pregnancy and threatened aboion isMinimal vaginal bleedingPain follows bleedingUterine size corresponds to gestational ageManifests at an early age  <response>: In Threatened aboion , uterus corresponds to the period of amenorrhea In ectopic pregnancy, uterus is normal or slightly bulky. Ref: Dutta Obs 9e pg171. 