Generally babies survive when born at 28 weeks. 24 weeks after LMP is 60%, 27 weeks is 89%, 31 weeks is 95%. Absent any evidence of a specific diagnosis about

Generally babies survive when born at 28 weeks. 24 weeks after LMP is 60%, 27 weeks is 89%, 31 weeks is 95%. Absent any evidence of a specific diagnosis about the fetus, it's reasonable to assume this survival rate.