So I have had some weird events: CD:3-7 I took Letrozole to induce ovulation CD:8-21 no positive…

So I have had some weird events:

CD:3-7 I took Letrozole to induce ovulation

CD:8-21 no positive ovulation tests

CD: 21 light pink spotting

CD:22 little more red still very light Spotting

CD:23 light brown spotting in morning only til 1pm

CD:24 absolutely nothing- negative pregnancy test

What the heck is going on.