I am taking dianne pills and I expect that my...

Dear Customer
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Is it possible to be pregnant during taking diane pills or any other ocp pills ?
its highly unlikely to get pregnant in this case as ocp pills including diane pills are hight effective in preventing pregnancy 
What is the possible cause in this case ?
the possible cause is ocp pills side effects , as period abnormalties are common side effects of using ocp 
What to do next ?
you dont have to go to doctor in this case as you are expected to have period in the next few days 
- if your period got delayed more than 7 days , consult an OBGYN doctor 
What are the  ocp side effects?
1. period irrgularties
2. headache 
3. changes in mood 
4. abdominal pain
5. nausea and vomiting
6. general weakness
7. breast pain
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Kind Regards