Can switching prenatals or maca mess with your ovulation?

I’ve been tracking my ovulation with opk’s for about 6 months with no luck of conceiving, but I have a very regular cycle with my peak always landing on CD 18 with a 30 day cycle. So this cycle, I switched my prenatal and started taking maca root capsules willing to try anything! Now I’m on CD 17 with veryyyyy light opk’s and no signs of ovulation. Im really scared switching up my routine hurt me instead of helped me 😣