Hcg more than doubled

Olivia 💙💖💙

I went from a beta count of 1703 to 3869 in less than 48 hours. I’m only between 4-5 weeks. Is this a sign of twins?? I can’t get the idea of twins off my mind and people keep mentioning twins to me!! Anyone else had high hcg early and found out they were having twins?

I go in for an ultrasound in 2 weeks btw