Ten days after the menstrual period has not come but did not detect pregnancy may be delayed ovulation caused by test error, can be further blood test blood human chorionic gonadotropin HCG to confirm whether the pregnancy, such as pregnancy does not require special treatment, such as pregnancy may not be symptoms of irregular menstruation, you can change the bad habits, take medication and other methods to regulate menstruation. 1. Pregnancy. If you don’t detect pregnancy after ten days of menstruation, it may be due to early or wrong test, etc. You can go to the doctor for HCG test as soon as possible. 2. Irregular menstruation. (1) Change bad habits. Delayed menstruation does not come, such as checking no pregnancy, may be the recent stress, irregular life, stay up late or dieting to lose weight and other bad habits, first of all, pay attention to regular diet and life, avoid staying up late, relax, avoid dieting or taking drugs to lose weight, etc., generally through the adjustment will soon come to menstruation. (2) Taking medication. If menstruation does not come after adjusting lifestyle habits, it may be related to endocrine disorders or organic pathologies, such as polycystic ovary syndrome. It is recommended to do ultrasound and sex hormone six tests to regulate menstruation, such as polycystic ovary syndrome can be prescribed to take ethinyl estradiol cyproterone tablets, progesterone regulation, etc., specific to diagnose the cause of the symptoms of the disease after the use of medication. If you do not adapt to early medical treatment, do not blindly use their own medication, in order to avoid adverse effects.