Digital went to 3+!!!!!

Kay
This is my first pregnancy, and this is likely a stupid question so I apologize in advance! But my digital tests went from 1-2 to 2-3 to 3+  within 2 weeks of my original test (done 3 days before missed period). My first doc appt isn't until later this month. Is the fact that the weeks keep changing on the digital test a good sign?