Hello! I understand your concern about your delayed menstruation. It's good that you have taken a pregnancy test, which has come back negative. Since it has been over a month since your last period, and you have ruled out pregnancy, there could be other reasons for the delay such as stress, hormonal imbalances, changes in weight, or certain medications.If you have recently received the anti-rabies vaccine, it's possible that it could have caused some hormonal changes which might have affected your menstrual cycle. Additionally, factors like illness, excessive exercise, or changes in routine can also impact your menstrual cycle.I would advise you to try to relax and not worry too much, as stress can further delay your period. If your period still hasn't arrived after a few more weeks, I recommend visiting your healthcare provider for a thorough evaluation. They may recommend further tests or examinations to determine the underlying cause of the delay and provide appropriate treatment if needed.In the meantime, make sure to take care of your overall health by eating well, staying hydrated, and getting enough rest. If you experience any concerning symptoms such as severe pelvic pain, abnormal vaginal bleeding, or other unusual symptoms, do not hesitate to seek medical attention promptly. Take care!