First of all, 10 days early menstruation is definitely not normal, why? We talk about most people having a menstrual cycle of 21-35 days. If your period is 10 days early, it’s definitely not normal. What factors should we consider: 1) We should ask her if she has taken emergency contraceptive pills to cause menstrual disorders. 2) We should give her a pregnancy test, either a blood test or a urine test to rule out pregnancy. 3) We should do a cervical cancer screening to see if there is any cervical pathology. 4) We should do a uterine ultrasound to see if there are any lesions on the endometrial lining. 5) We should do an ultrasound to see if there are any lesions in the endometrium. 6) We should do an ultrasound to see if there are any abnormalities. The most important thing to remember is that you can’t be sure that you’re pregnant. This is 10 days early menstruation is not normal, we have to check a few aspects.