Extreme fatigue and large clots?

I missed two days of my birth control (Sprintec) and yesterday morning I woke up with my period two weeks early. Since then I've had multiple large clots, minor cramping, and extreme exhaustion. I went through an entire regular tampon in an hour and a 10 hour maxi pad in 6 hours. It's affecting my performance at work and I'm leaving for vacation on Sunday and don't want to go see my doctor. Any suggestions or has anyone else dealt with this?