Clomid questions

Madison
Has anyone ever been on clomid and it screw up their cycle? I ovulated later than normal by several days. Now I'm confused on when to expect my next cycle. I normally have a 24 day cycle.. My period began May 1. however, 2 weeks after I ovulated would be the 27/28.. But this app said I should get my next cycle the 31.. Any thoughts? Any have this happen? 
Thanks :)