Calculator
Due date calculator
A production version should calculate from last menstrual period, conception date, IVF transfer or clinician-provided due date.
Estimated due date
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This is an estimate based on 40 weeks from the first day of your last period. Your healthcare professional may use a scan or clinical details to adjust it.
Educational health content
LioraBump provides educational pregnancy and baby development information only. It does not replace advice from a doctor, midwife, paediatrician, or other qualified healthcare professional. If you have urgent concerns, seek medical help immediately.