Help me!

Started period March 1st. (1st-7th.) started clomid cycle day 4-8.

BD the 9th, and 12th. (I know not a lot but I was sick for a bit.)

Fast forward to this weekend. Sunday and today I’ve had very light spotting. I’m confused why I am spotting right now. I’ve been taking ovulation tests daily and so far the line has gotten darker but not as dark as the control line. I go in on Thursday for progesterone check. Anyone else experience this or have any insight?

Thanks