Are my levels normal?

I had my levels checked, I was 4 weeks and 4 days and I got 1,825 for my hcg, could It possibly be Twins? My progesterone was 13.4, is that low? The nurse told me that it is at a normal range for where I’m at in the pregnancy but I’ve heard different things to where your progesterone should be at so I’m not too sure?