Shorter cycle

Hi i was just wondering if anyone has noticed their cycle getting shorter and there af getting longer. I went on the pill because I had a super short cycle of 21 days when I was 16. I was off the pill for almost 1 year before ttc and I had a 27 day cycle. Since ttc (jan) it has slowly gone from 27 days to 23 days and af is lasting up to 8 days. Has anyone else had this issue?