Effects of Pass/No Pass grading option on Graduate Admissions?

Hello, I am a second year undergraduate student studying mathematics at UC Berkeley and so far I have used this grading option for two classes which were breadth/elective courses. This semester I am taking two upper division math courses, a breadth course and computer science course. The computer science course is taking away a lot of time from the other courses so would pass/npassing this course reflect badly when I apply for a master’s or PhD program in pure mathematics?
Thank you