Has anyone had this info confirmed by their doctor? Once hcg is over 1200 it should rise 60% (not double) over 2-3 days?

I had my first hcg drawn today at 4+4 and it was 2460. I’ve always heard people say it should double every 48 hours so I assumed it should be around 5000 when I get it done in two days, but since mine is on the higher end of the normal range to begin with (and greater than 1200) should I expect it to not rise as quickly now? Obviously I’ll discuss it with my doctor but I’ll probably see the result first and just want to know what to expect.