I'm taking Tri-Sprintec and yesterday I accidentally took week 3 pill 1 instead of taking my last one on week 2 and I'm not sure what I'm suppose to do now. This is the first time I've done this and I've been on the pill for about 5 months now. Can someone give me the information I need to know to figure this out? What pill should I take today, the one I accidentally skipped on week 2 or do I just continue with week 3 pills? Also, do I need to use another form of birth control from this mess up?