3 days late... praying this is it! 😍

My last period was November 17.. I decided i wasn't going to track or even worry about trying to conceive at this point because my "due date" was the same month and I was in a lot of emotional pain... I was due for AF on the 20th and I didn't even realize I was late... but I have not had any signs of period or pregnancy.. I keep feeling like AF is gonna come but never does... I took a test yesterday after noon and it came back negative... I also didn't wait the 4 hours to let it build back up either. For the last several months after my miscarriage I have been regular.. what do you guys think? Maybe I'm going back to wacky cycles? Or could this be it...? Glow has pushed my period back to the 26th now.