Research on week-by-week risk of miscarriage is limited, but we have early studies. According to one source, its about 25% at 4 weeks, 5% at 4-8 weeks, and 2% at 8-12 weeks. After the first ...

About 10% of pregnancies end in miscarriage, with the majority of them happening before the 12th week of pregnancy — but it’s important to note that sex isn’t a cause. Chromosomal changes ...