Thanks for the query.
Have you put on weight recently ?
Any hair growth on your chin recently ?
There could be many causes for delayed periods like emotional stress, lack of sleep, hormonal disorders like Polycystic ovarian disease
or PCOD, ovarian disorders etc.
Eat a balanced diet. Drink 1-2 litres of water daily. Do daily brisk walking for 40 minutes a day. Do Yoga everyday. Sleep for 6-8 hours a day. Try to reduce stress at work by taking frequent breaks or reducing work hours. All this will reduce stress and help in maintaining normal menstrual cycles.
You will need to consult a Gynecologist and get an ultrasound
scan of your pelvic organs including ovaries, uterus. This will be able to find out any problems with these organs. You may also require to test hormones like FSH, LH, Estrogen, Progesterone
, Thyroid hormones as all these can affect periods and fertility
If pregnancy test is negative, it is usually correct. If you have doubts, kindly get Beta hCG level tested at a Hospital as this is more accurate to diagnose pregnancy.
Kindly follow up with me after you consult your Gynecologist for good advise.
Wishing speedy recovery.