Calculate your estimated due date based on last period, ovulation, or conception.
Estimated Due Date:—
Current Gestational Age:—
Trimester:—
Days Remaining:—
Your Calculations
What This Tool Does
适用场景：刚确认怀孕，想估算预产期的准妈妈。
使用方法：选择计算方式（末次月经/排卵日/受孕日），输入日期，点击计算。
结果解读：显示预产期、当前孕周、所处 trimester，以及距离预产期还有多少天。
About Due Dates
Only about 5% of babies are born on their exact due date. Most arrive within a week before or after. This tool gives you an estimate based on standard 280-day pregnancy calculation.
⚠️ Note
This is an educational estimate. Always confirm your due date with your healthcare provider through ultrasound dating.