I am 3 days late in period and have had backache and stomach ache and white milky discharge for 2 days could i be pregnant?

Occasionally,: There can be variations to your menstrual cycle. Normal could be every 21 to 35 days. If you have a negative pregnancy test, start keeping a menstrual diary. Your discharge and other symptoms can be evaluated by your doctor and you can ask any additional questions at the appointment. Best of luck.

Maybe: Check a urine pregnancy test. If negative and no period see your gynecologist.