I agree, but in all the bins combined there are 1370 miscarriages a day in the US. The number given in the article is also combined.
Doesn’t matter.
You can’t handwave away a miscarriage right after the jab at 3 months along by pointing and jibbering about “but muh 4.5 months miscarriage by a 45-year-old crack addict!”
This is why averages are not your friend, unless you have a sample known to be homogeneous with respect to all confounding factors.