I have been contacted by an obstetrician/gynecologist with some data they had been collecting for the past 2 years as part of their sacred duty in their practice. This person collected new patient data and miscarriage data and also has average rates for the past years.
This is what the data looks like.
… So with just a few points of data, we get an unbiased assessment of the change in miscarriage rates in 2021 and 2022. It is pretty clear from this data that, for some reason, there are more miscarriages and fewer new moms to begin with in 2022.