Your Labor Probability
Subsequent pregnancy · Due May 10, 2026
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Current gestational age
35 weeks and 0 days
35 days until due date
Today
Next 3 days
Next 7 days
Next 14 days
Daily Probability Chart
Preterm (<37w)
Early term (37-38w)
Full term (39-40w)
Late/post term (41w+)
35w
36w
37w
38w
39w
40w (due)
41w
42w
Cumulative Probability
Probability that labor will have started by each milestone:
Check a Specific Date
Key Percentiles
Estimated dates by which a given percentage of pregnancies will have started labor:
Sources
- Smith GCS (2001). "Use of time to event analysis to estimate the normal duration of human pregnancy." Human Reproduction, 16(7), 1497-1500.
- Jukic AM et al. (2013). "Length of human pregnancy and contributors to its natural variation." Human Reproduction, 28(10), 2848-2855.
- Kieler H et al. (1995). "Sinistrality - a side-effect of prenatal sonography: A comparative study of young men." Epidemiology, 6(6), 618-621.
- Mittendorf R et al. (1990). "The length of uncomplicated human gestation." Obstetrics & Gynecology, 75(6), 929-932.
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This calculator provides statistical estimates based on population-level research and is not a substitute for medical advice. Every pregnancy is unique. Always consult your healthcare provider about your specific situation.