Hcg levels update*

I had an ectopic a few months ago and got my bfp over a week ago. The doctor just got me in today for my first hcg check and I know they don’t really mean anything until you get the second one but it just came back and is only 324. I feel like that’s lower than I was hoping for. One app says I’m 5 w 1d another app says I’m 4 w 5 d. So I’m just nervous it’s another ectopic due to the lower number. Like it’s not doubling again how it should. Any have hcg tested around this time and what was the numbers? Trying not to worry yet. Just hard all this waiting.

I’m guessing I’ll get a scan when I’m around 6 weeks or determine with my next hcg check to rule out another ectopic