Period was 2 mo late, now been on for 3 wks so far. at the beginning of it all i was intensely stressed but not now. should i be worried?

Irregular bleeding: If this is one time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections and 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.