Hello, and I hope I can help you today.
You were completely correct in following the proper instructions for what to do when you forget to take your pill. If you miss one pill but take it within 24 hours of when you forgot it, the effectiveness of the pill is not reduced and you still rely on it as primary contraception
. However, one of the side effects of taking the pill at irregular intervals is having spotting when you are not supposed to have your period. The brown discharge you see is actually very light bleeding and will usually stop within a few days after you take your pill at the same time every day.
There are apps you can download (if you have a smartphone) or email programs on the internet that will send you a reminder to take your pill every day. Or a good low-tech method to help you remember is to coordinate taking your pill with something you do around the same time every day (like brushing your teeth) so you get into a daily habit.
I hope I adequately answered your question and that this information was reassuring.
Best wishes, Dr. Brown