I think the number may change depending on the framing. ~50% of all fertilized eggs fail to implant, in which case the woman would have a regular period. If you count those as miscarriages, I could imagine seeing a number as high as 75%.
A missed implantation is not a pregnancy because it will never cause a positive pregnancy test. The extra 25% is the first 6-8 weeks where you’re still in “missed period” territory but most women would not have tested unless they were trying to get pregnant.
I think the number may change depending on the framing. ~50% of all fertilized eggs fail to implant, in which case the woman would have a regular period. If you count those as miscarriages, I could imagine seeing a number as high as 75%.
A missed implantation is not a pregnancy because it will never cause a positive pregnancy test. The extra 25% is the first 6-8 weeks where you’re still in “missed period” territory but most women would not have tested unless they were trying to get pregnant.