BFP 6 days before AF due?!

My period was due January 10th. On January 4th I got a vvvvvfl on multiple tests. I took another test the next day and the line was darker and than on the Saturday I took a digital ; also positive. Is it possible I'm carrying twins?! I'm so nervous! Another worry that has crossed my mind is that maybe it's an ectopic pregnancy so that's why? I know nothing can be confirmed until I have an ultrasound but have any ladies gotten a positive test so early? What was the outcome?