Missing periods can be a sign of pregnancy. Do you use protection? Are you planning on getting
pregnant?
Often vigorous exercise delayes periods so nothing to be alarmed about.
Sometimes periods do get delayed +/- 7 days so that can be one of the possibilities.
You can always confirm your pregnancy by testing kits available in the market.
Next Steps
Confirm pregnancy by urine
pregnancy test in lab
Health Tips
If you are oral contraceptives then you will not be having any periods. stop using then and periods will resume.