Positive OPK after miscarriage?

I’m 2 weeks post missed miscarriage (D&C) still testing positive on pregnancy tests, although fading slowly.

Would this ovulation test therefore be in accurate? I do have some symptoms of

Ovulation and it adds up with when I usually would ovulate in a normal cycle. Been given the green light to try again anyway, just curious if I would even ovulate if I still have HCG in my system?

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