Four days early for my period but it's not like a period i woke up cramping but when i wiped it was red mucus like and i was nauseous with sore breast?

If you miss your: Period by 4-5 days it would be time to do a home pregnancy test, if you are sexually active.

An early period: Irregular periods are one of the most common problems obgyns treat. If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections ; hormonal changes can cause spotting. If there is a concern for pregnancy then do a home pregnancy test . There are many options available to help regulate the menstrual cycle. Schedule a visit.