Hello. Thanks for writing to HCM.
I read and understand your question very well.
I try my best to help you in this.
As you have delayed period and negative pregnancy test, there are many causes for this like
1.
Excessive weight loss or gain. Although low body weight is a common cause of missed or
irregular periods, obesity also can cause menstrual problems.
2. Eating disorders, such as anorexia or bulimia. For more information, see the topic
Anorexia Nervosa or
Bulimia Nervosa.
3.Increased exercise. Missed periods are common in endurance athletes.
4.Emotional stress.
5.Illness.
6.Travel.
7.Medicines such as birth control methods, which may cause lighter, less frequent, more frequent, or skipped periods or no periods at all.
8.Hormone problems. This may cause a change in the levels of the hormones that the body needs to support menstruation.
9.Illegal drug use.
10.Problems with the pelvic organs such as imperforate hymen,
polycystic ovary syndrome, or Asherman's syndrome.
11.Breast-feeding. Many women do not resume regular periods until they have completed breast-feeding.
Do not be panic. Just calm down . Be happy , enjoy your life.
I suggest you to consult a good obstretics and gynecologist for this.
I hope my advice will help you a lot.
Thanks and Regards.
Dr Vijay