I am 33 years old and its been 39 days of cycle but my period not yet came, i tried a pregnant kit test but its negative.pls need your advice doc.thanks?

Female anatomy: There is too much missing from your question to give you a valid answer. I do not know what medications you are on; i would want to know what your periods have been like the last year: i would wonder if you are entering menopause and thus what your mother's experience was with this. I would want to know what other health conditions you have.