Weird period after stopping the pill! HELP!!

[Bumpingalong84]

Hi peeps, wondering if anyone can help!
I'm 31 next month and DH and I have decided to start trying for our first baby.
I came off the pill on the 13th December, had a withdrawal bleed around the 16th. I then had some brown spotting on the 31st! Then have started what I thought was a period on the 12th jan! However this has been a week of browny discharge with red streaks, only using pads!! sorry (tmi) then today a week later it has turned red!! When do I could Cd1!

Sorry I'm just confused and excited by all these changes! And would like to calculate fertile period properly!

I'd been on the pill about two year before that I was on the defo injection. I did stop the pill mid pack!

Hope to find others in the same boat as me!!