I was supposed to have my period on the 29 th of jan. but still not coming till today. i get it regularly every 25 days. i had about 3 hot flashes ?

Irregular periods: 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. If there is a concern for pregnancy then do a home pregnancy test . At 44 it may signal perimenopause. There are many options available to help regulate the menstrual cycle. Schedule a visit.