Hi doc. i was been delayed for my period and it's the 8th day now.had a preg test 4 days back but negative.my period is always regular. was thinking if this relates to my previous sickness.i was a cancer survivor but that was 3 years ago.appreciate for yo

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. 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.

Stress?: Stress and anxiety can cause menstrual cycle irregularities. If you have no reason to suspect pregnancy, there is probably no reason to worry..otherwise get a more reliable pregnancy test (in lab) or check with a gynecologist