Body is being weird... Tmi

Anyone ever had cm with a brownish tinge to it? This has been going on since about the 18th. That night the hubs and I bd'd and there was noticeable brown discharge when I cleaned up. Today after a bm I had pink spotting which is now back to a brown tinge, but only when I wipe. I'm 8 dpo today. I don't think I've ever had this happen for so long. It usually only happens a couple days before af and it gets progressively heavier and darker until its actually blood, but AF isn't due until the 27th and the discharge has been the same for days. Any ideas?