So I've been on the pill up until about a month ago because I ran out of refills and was about to go out of town so I was just going to get more when I came back. I was supposed to start my period on the 9th and still haven't started, so I'm 5 days late. I know the pill regulates your period, but I don't see why I'd stop it completely with not taking it. I've taken 3 pregnancy tests and they've all been negative.