I inseminated on the 16th of the month because that's when my donor was available.  My opks were getting darker but then started to get lighter on the 19th.  I figured I missed my surge.  I've had a lot of cm for the past week which isn't. Orval for me due to an auto immune disorder.  Today I took an opk strip and an opk smiley test.  Both indicated my surge.  Then I took a pregnancy test with the same urine and got what seems like a faint positive.  Any thoughts?