Miscarriage rates: 10 weeks or first trimester?

So everything seems to say that the miscarriage rate drops a ton once you finish the first trimester. However, when I look at the data it seems like the miscarriage rate at 10 weeks is just as low as it is at 12, 13, 14+ weeks. Am I missing something?

Note: this is an attempt to keep myself hopeful as I'm a little over 9 weeks and had the slightest bright red spotting yesterday (very little upon wiping, only happened twice). I have slight cramping today, but I've had slight cramping all pregnancy. Threw up this morning, but I know that doesn't mean much. Just trying to keep myself going until my first OB scan in 5 days at 10 weeks.