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? If you are still confused, see the following example:
Sentence1: After how many hour from drinking an antibiotic can I drink alcohol? 
 Sentence2: I have a party tonight and I took my last dose of Azithromycin this morning. Can I have a few drinks?
Solution: Similar
Reason: The first sentence ask about the number of hours to drink again after having an antibiotic and the second sentence also ask question about having drinks having later at night after having Azithromycin an antibiotic.

Now, solve this instance: Sentence1: When do i ovulate if my last period was last month on the 28th and i have a 31 day cycle ? 
 Sentence2: I had unprotected intercourse during on my ovulation day according to my period tracker. My last period date was 28th of last month and my cycles are of 31 days. What are my chances of pregnancy?
Student:
Dissimilar