I took a pregnancy test yesterday It came out negative but I still haven't started my period Do you think times because of stress?

It's possible that stress could be affecting your menstrual cycle, as it can disrupt hormone levels and lead to delays. A negative pregnancy test is a good indication that you are not pregnant, but if your period doesn't start soon, it might be worth consulting a healthcare professional for further advice. Other factors such as changes in weight, exercise, or health conditions can also play a role in menstrual irregularities.