Menstruation is not adjusted, how does test pregnancy stick a bar return a responsibility

Irregular menstruation is related to endocrine disorders, affected by hormone levels in the body, but it may also be caused by gynecological diseases, such as polycystic ovary syndrome, ovarian cysts, etc.; and for the phenomenon of pregnancy test stick, it means that there is no pregnancy, usually you should keep your mood comfortable, and regularly go to the hospital for obstetrics and gynecology examination.