Detailed Instructions: 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.
Q: Sentence1: 2 period in 1 month am i pregnant ? 
 Sentence2: I want to get pregnant but have irregular period.
A:
Dissimilar