Please help opk’s week after mmc

Jenna • Live, laugh, and love!

I had a miscarriage March 27th and bleed for 6 days and it stopped and I took opk’s and they were positive so I thought it was left over hcg from being pregnant. I kept testing with opk’s and they started getting lighter and then two days later they started darkening again. So my first question is this a positive opk? I took this tonight.