Hormones still high!

Amanda • TTC for 1st after our loss on June 29th, 2014
I had a MC 8 weeks ago and my levels are still high. Had blood work done today to see what they are at. Two weeks ago 39 which was down from 72 two weeks earlier. Hoping to be negative soon. Once I'm negative should I be getting my period or ovulating first? Is it normal to take this long for my levels to drop?