Spotting during projected fertile window

Blair

I need some advice, please. I've been spotting since my period ended on the 13th. It's been light spotting, dark brown (mainly) in color. I haven't noticed any EWCM, but I'm wondering if I didn't notice it because of the spotting. I started taking Vitex and Maca root and I'm wondering if this maybe has caused the spotting. Do you think the decreases my chances of conceiving this month?

Thank you!