so I switched my birth control in the beginning of November and stopped taking it December 20th. I…

so I switched my birth control in the beginning of November and stopped taking it December 20th. I had my period following stopping bc and now I'm going on 2 days late for my second period off. I'm wondering if I'm pregnant (fingers crossed) or if my cycle has just changed now being off of it. we tracked my ovulation and tried on my most fertile days but i was unsure if it would matter that close to stopping bc or if my body became fertile sooner because of switching right before I stopped.