Ive been on BC for about 3 years (same time at night, every night) and have changed strengths a few times but my period is still irregular every month. Sometimes I don't get it at all for a few months because it is very light and I'm positive I am not pregnant.
Just because it's irregular, it's still preventing pregnancy, right?
Also, since it's irregular, I have sex with my boyfriend when I'm taking the placebos (because I don't have my period then usually.) Although I'm not taking the real pills, is it still working and I won't get pregnant?