Constant smiley face

Jessica

Had mirena removed April 11. Had what was suppose to be a period the 16th to the 20th. Cramps, dark discharge, and vvvvmild spotting. Got a flashy smiley face CD 11 to today CD 15. Wondfo is negative but getting darker. Thoughts? Could i just not really ovulate this month since i just had mirena removed and my body is just picking up a little LH or will i just surge late? Bottom is this morning