When did you take the last bc pills?
when did you miss pills?
how long are you taking?
did you have the periods or had the pregnancy test done?
The chances of pregnancy may be there if you miss the bc pills while being on it.The time of ovulation may also change when you are on bc pills due to the hormonal influence.
You should have the pregnancy test done like blood hcg test to rule out the pregnancy.
The bc pills pills itself may cause hormonal imbalance and cause absent periods and irregular bleeding and this should also be checked for.
The other causes of absent or delayed periods are stress, anxiety, thyroid abnormality etc and should be ruled out.
Please feel free to ask me any doubt.
You are welcome.