How long for hormones to drop?

Had a mc (first pregnancy) on January 24th at 7 weeks and took an ovulation test a few days ago and it was positive but still showing a positive today and it’s been 3 1/2 weeks since my MC and no period yet. How long has it taken others for their hormones to go back to normal as I’m assuming this is all leftover from the pregnancy still? Thanks in advance for your help!