Miscarriage? ...Waiting for doctors call back

So I feel like I’ve posted a lot in the last week and a half. But I had my 2nd round of bloodwork this morning to check my HCG levels (1at round was last Wednesday) and my levels went down...I had spotting starting the day after my positive test but it was never bright red, never enough to fill a panty liner and it was really only when I wiped. My levels were 277 on May 27 and today 181...I’m waiting to hear back from my doctor but I’m devastated. My boyfriend is trying to stay positive but I know in my heart what’s going to happen...I’ve never been pregnant or had a miscarriage before. How do you cope? How do you move forward?