Hcg level question!

Kristina
Has any one ever had extremely high HCG levels. On Friday, 8-13-16, my levels were 263. And today, 8-17-16, they were expecting about 1000 but my results came back at 3000.
Could that mean multiples?
I just miscarried end of June had my d&c July 8th. And had sex 2 times since then and was also on the depo shot to be able to heal for three months before TTC again. 
I go in for an ultrasound in 2 days! Just want to mentally prepare for what to expect