Slow rising hcg

Dana

So I am 5 weeks 6 days. In the first few days my hcg rose quickly and then doubled once. Ever since then it’s only been going up a couple hundred every 48 hours. I am high risk so I am monitored closely. My doctor said he is cautiously optimistic because my 5 week scan looked great and all other numbers were fine but never really experienced a slow rising hcg like this…has this happened to anyone before?