So, I am on YAZ Birth Control, and have been for about 4 months. I am sometimes very bad at taking my pills at the same time. But, I only ever take them an hour or two later than normal. Also, this month I fell asleep and ended up taking one 6 hours later. I know that this can make the pills very ineffective. I was supposed to get my period 5 days ago. My period used to be very irregular so that was one of the reasons I started using birth control. Me and my boyfriend are sexually active, but he ALWAYS uses a condom. And we have not had sex for a while, maybe 3 or 4 times since my last period. The day after I was supposed to start my period this month I was having some pink/brown discharge and I just assumed it was my period starting off. But, it went away at the end of the next day. I took a pregnancy test first thing this morning and it was negative (I used a digital one so I am positive it was negative). I'm going to try again in 3-5 days just in case I was taking it too early. But, is there anything else that can delay it from coming? Will it not come now because I'm already into my next pill pack? Thanks!