Today is CD 18. Yesterday and today I've been having peach colored cm. I've been having a nervous feeling in my stomach, and I had some upper back aches that only lasted a few minutes. My next period isn't due for 2 more weeks. Me and my husband have had sex the 18th, 19th, 20th, and 25th of this Month.

What would this peach/tan colored spotting mean? Yesterday morning when I woke up I checked my cm and it was a peach color with some blood in it (1st picture). Then yesterday afternoon it turned to a peachy tan color (2nd picture) and now it's just a tan color (3rd pic taken this morning) What would this be?