Help! Positive for 5 days??

Brianna • Mommy to a girl born 9/12/2008.😇 10/26/18. MMC 5/20/19 🤰🏼 🌈 due in April 2020!

I had a MMC and D&C on May 20th. I’ve tested negative on pregnancy tests for 3 weeks now and for the last 5 days I’ve had pretty constant opks. I don’t have pcos and I’m so confused on what’s going on. Anyone have any advice? Thanks.