I am on a continuous cycle combination birth control pill. i have been on the continuous cycle for almost 3 months. i had intercourse and realized i had a period like breakthrough how long do i wait to take the 3 day break so i am still protected?

It depends on the specific Pill you are taking. Read the instructions. Most continuous cycle combination birth control pills are meant to be taken for a year or more continuously. Breakthrough bleeding can occur at various times with this type. Extended use birth control pills have specific pills with lower estrogen levels at 3 month intervals which allow for withdrawal bleeding.