Why Do I have Period for 20 Days?

If your period started on 30 January 2024, you can rule out pregnancy.

You didn't mention the pregnancy test and also even if it is possitive, you need to see your gynecologist. They can ask for some tests and confirm about pregnancy or any other health conditions
 

Yes, oral contraceptive pills can delay your periods. But it is advised to not use these pills to delay your periods for more  number of days. 

PCOS symptoms: weight gain, hair growth, irregular periods, infertility. Medical diagnosis: pelvic exam, blood tests, ultrasound. Consult your physician for diagnosis and treatment.

The light and brown bleeding you had after swallowing an OCP pill a week later following intercourse is not indicative of pregnancy. It is one of the common side effects related to your body due to hormonal changes which you experience when utilizing pills. However, one is advised to seek advice from their gynecologist in case they have any doubt or fear.

It is necessary to take a pregnancy test if you had unprotected sexual intercourse and the delay of your period occurs. While a negative result and the absence of your period require an additional check with consulting either gynecologists or obstetricians. They can determine if there is an underlying condition responsible for the delay and offer adequate treatment