Hi Good Day i have 22 days off period im worried, ...

what is the possible cause in your case ?
- we are not aware if you are still take the OCP pills or not , but its supposed to be stopped at 21th day of period 
- if you are taking it continuously , then period is more likely to be delayed 
- OCP in general cause period irrgularties 
- other causes of delayed period :
1. Hormonal changes 
2. stress
3. Obesity
4. Thyroid diseases
5. gastic system disease (wheat allergy)
6. ovarian cysts 
7. malnutrition and low weight 
what to do next :
1. consult GYN doctor to do the needed routine medical test and determine the treatment pathways ( if needed ) 
2. in case of hormonal changes , doctor may prescribe medication to correct hormones imbalance such as duphaston , which you should take a pill every 12 hours for 5 days  
3. in case of thriod hormone abnormalties ( usually accompanied with other symtpoms ) , doctor will prescribe medication such as Levothyroxine
4. in case of other chronic disease such as ovarian cyst ( PCOS ) or other disease , doctor may need addvanced examnation to determine the causes and treatment pathway 
5. general advices :
- avoid stress  and have plenty of rest 
- healthy life style including health diet and regular exercise 
Needed medical examnation :
1. physical examnation 
2. Pregnancy test 
3. vaginal culture and urine test
4. productive system ultra sound 
5. hormone levels including productive system hormones and thyroid hormones