Medical disclaimer
Last updated: November 4, 2026
The information on vitamamma.com, including calculators, guides and printables, is for general information and planning. It is not medical advice and doesn’t replace care from a doctor, midwife or other qualified provider.
- Calculators do calendar math based on the first day of your last period. Your provider’s dating, often from an early ultrasound, is the reference for your due date.
- Schedules we mention, such as when screening tests are usually done, describe typical timing from the sources we link. Your own care plan may differ.
- If you think you may have a medical emergency, call your provider or emergency services right away.