Been a while

I took a break from trying to conceive as it was taking over my life. I got a dog, did everything to take my mind off of it. Then I finally got onto glow again and logged the days I had s*x, realized I only had sex on the days I ovulated and am 21 days late. I’m not like super concerned as the period before, I was two months late for. What’re the chances I could have gotten pregnant because I stopped trying?!! Or does anyone know why my cycle could have switched to literally a 66 day cycle :,) sos help pls