Optimal Timing for Medication: A Guide to Staying Safe

Question
I take my pill at 7 pm. Sometimes I am not able to take it right at 7:00 because of my night classes. I will either take it at about 6-6:30 or when I end class at 8-8:30. I know that if I had to choose, it would be better to take it at 6:30. But what is to early and what is to late to take the pill(the time frame around the chosen time). I hope that makes sence.Thanks for the help.

Answer
The closer you stick to your regimine, the safer you are.  But an hour either way isn't going to be terrible, but a risk is a risk.  No one knows how much it is for themselves, statistics just give you an idea of how many people got caught.  You could be lucky, or not.