Aftermath of birth control?

Mackenzie

So I finished my last bc pack the last week of July and had that “scheduled” period as usual (for August). In September my first real period started on its own pretty much right on schedule. But. Come October it was late... so of course I tested! BFN... another week late. BFN. AF just completely skipped over October... In November, almost right back on track with August/September...... Now December is about over and no sign of AF... and still getting that BFN!.....

Is this just my body trying to get back to normal after like 7 years on the pill? Or could it be something more than that?...