Miscarriage probability is higher than people who never see the statistics guessed, even for the people with the best age and other conditions(>10%).
Also it is said early occult miscarriage rate is 40%. It's early because less than 1 week, it's occult because we don't realize it, no sign of pregnancy, so we can't observe it most of the time.
The book I'm currently reading(The Vital Question) said that miscarriage rate is high because zygote dies in case of inefficient mitonuclear match, filtering the bad fits.
Also it is said early occult miscarriage rate is 40%. It's early because less than 1 week, it's occult because we don't realize it, no sign of pregnancy, so we can't observe it most of the time.
The book I'm currently reading(The Vital Question) said that miscarriage rate is high because zygote dies in case of inefficient mitonuclear match, filtering the bad fits.