Cm question

Colby • Sun, May 28 • Mommy to 1 boy 💙 1 little girl 💜 and two angels 💛

So I check my cm everyday and well tmi and I'm sorry but it's creamy has been for a few day. Today I went to check it and it was still creamy but there was a dark red streak in it. Af isn't due until the 4th. Any ideas?