Misdiagnosed for a missed miscarriage/miscarriage

I went in over a week ago w/bleeding and I pretty much given the ultimatum of having a missed miscarriage/or one in progress because of having blood and “debris” in my uterus. Well My hcg levels have continued to rise every 48 hours and have nearly tripled since my last draw! I just wanted to post this that not every diagnosis is correct and to have hope if you’re told something something negative. And just to clarify I was told the same thing by 2-3 doctors, and now I’m getting scheduled for my first official ultrasound in about 2 weeks For dating.

My levels started out at 108, then were 209, then nearly tripled to 553