Missing a period, having late or irregular periods doesn't always mean that you are pregnant. There are several other factors associated with having missed periods such as hormonal imbalances, lifestyle changes, medications, and other medical conditions. Doing rigorous exercises can also lead to irregular or missed periods.
Yes. I also missed periods for few months and did not face any other troubles. Missed periods is a major concern for most of the women, but then it needs to be dealt in a positive manner. You can consult your gynecologist, if you face any major concerns.