What else could be a reason for a missed period besides pregnancy?

Question

i am a month late for my period, but i have taken 4 pregnancy tests, and they all say negative. What else could it be?

Answer 1

-- PCOS
-- Hypo/ Hyperthyroidism
-- Ovarian cysts

-- Stress
-- Malnutrition/ Poor diet
-- Too much exercise, or lack there of
-- Strenuous activities

Answer 2

Being stressed about something (whether good or bad) can cause the period to be delayed. Also, for some a hormone imbalance can cause a period to miss.

The only way to know for sure is to see your doctor for further evaluation of the situation to see what they think could be going on.

Answer 3

stress