Help w serum levels??

T • Mama to a miracle🌈 6/8/21

I had a CD21 progesterone drawn even though I believe I ovulated on CD17/18. My level was 18ng/mL. Isn’t this pretty high if only 3-4dpo?

I took “premama” this month which contains myo-insitol which is supposed to aid in a stronger ovulation so maybe that’s why?

Just odd because it’s higher than my usual!