Hello, I would be happy to help you with your question.
If this test is positive then you are pregnant. You sound like you have irregular periods
likely related to irregularity in terms of when you ovulate. When you stopped the pills, at some point you ovulated, and this usual comes BEFORE you get a period. So you might have ovulated once, gotten pregnant, and never got a period. You need to get into your doctor as soon as possible to determine how far along you are!
I hope that this helps and good luck!