Confused

In November I started my period on the 13 in December I started on the 19th but it only lasted like 3 days this month I started on the 7th (yesterday) but 3days prior to that I had Alot of clear cm almost like a clear period and I've been peeing Alot lately more then normal I wake up 3-4 times a night to pee can someone please help me figure this out I usually have abnormal periods but never like this it's usually like a period every 2-3 months when I have one I just got off birth control in July after being on it for almost 4 years