12DPO weird CM. PLEASE HELP!!!!!!

I'm 12dpo and have been having weird CM (pictured below) I've never had EWCM before AF. But for the past 3 days I've had it during the day then it goes away. Today it's completely clear with a streak of pink. Did an opk to make sure I'm not ovulating late and there wasn't even a test line only control. No AF symptoms what so ever, she should have been here yesterday and nothing...all tests have been BFNs Could this be implantation? I'm so confused. Please help!!!