That may be untrue, my EX took her pill for a week before we started having sex, the information that came with her pills, said that it is effective after the first day of taking the pill. I am not a daddy so it worked :-). Doesn't mean you should start having sex after a dayo n the pill, but 25 days seems enough to have your body take effect to them. And BC pills are hormones, your body obeys them, your body doesn't have to get used to different levels of hormones, your hormones change all the time.
------------------
Personal Information:
Sex: Male
Age: Under the age of 18
Sexually active