My period is on tonite its the 20 th and it shoud have came on the 29th?

One-time symptom?: If worried, doctor can check to see if there is any medical issue, if a woman has mild menstrual-related symptoms. Many women have some variation of their mucus discharge, their periods, or a missed period on occasion. Some women feel normal after a few days, but others do have bothersome symptoms and follow-up with their doctors. A urine pregnancy test is accurate if done after 2 more weeks.