Clomid and cycle!!

Angela
Help!! I'm on second round of clomid and last month I never got my BFP and af arrived on day 30. Second round and I'm on day 31 with no sign of af. Nurse told me wait until day 35 but itching to do a test. I know I'm only 1 day over and I'm not sure how regular clomid makes u. Any advice?