When will I miscarry

Robynne • Miscarriage in April 15 at 9 weeks and MC in November 15 at 5 weeks, now expecting our rainbow baby December 2016 🌈🎆
Sounds stupid but I'm literally waiting on miscarrying, my levels dropped to 17 yesterday so was advised its inevitable but I have no cramping or bleeding, I'm terrified of ectopic although they didn't seem concerned that was the case