Teacher:In this task you are given a medical question pair hand-generated. Your task is to classify a given post into two categories 1) 'Similar' if the given two questions have a same connotation 2) 'Dissimilar' if the given two questions have a different connotation or meaning.
Teacher: Now, understand the problem? Solve this instance: Sentence1: My period was black and sticky but is not smelling although have been having irregular menses for two years now? 
 Sentence2: I have irreglar periods. Can I still get pregnant?
Student:
Dissimilar