Due Date Countdown Calculator
Track your pregnancy journey with our due date countdown calculator. Knowing how many days remain until your expected delivery helps you prepare physically, emotionally, and practically for baby's arrival.
Pregnancy Countdown Milestones
| Weeks Until | Trimester | Milestones | 28+ weeksFirstMorning sickness, first ultrasound 14-28 weeksSecondGender reveal, baby movements 14-0 weeksThirdNursery prep, hospital bag 4 weeksFinal monthMaternity leave begins | 2 weeks | Almost there | Final preparations |
Due Date Calculator
``javascript
function pregnancyCountdown(dueDate) {
const today = new Date();
const due = new Date(dueDate);
const diffTime = due - today;
const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
const diffWeeks = Math.floor(diffDays / 7);
// Calculate current pregnancy week (assuming 40 week pregnancy)
const currentWeek = 40 - diffWeeks;
return {
days: diffDays,
weeks: diffWeeks,
currentPregnancyWeek: Math.max(1, currentWeek),
trimester: currentWeek <= 13 ? 'First' : currentWeek <= 26 ? 'Second' : 'Third',
fullTerm: diffDays <= 21, // 37+ weeks is full term
dueDate: due.toLocaleDateString('en-US', { month: 'long', day: 'numeric', year: 'numeric' })
};
}
``
Preparing for Baby's Arrival
The countdown helps pace preparations: complete nursery by 36 weeks, pack hospital bag by 37 weeks, install car seat by 38 weeks. Remember that only 5% of babies arrive on their exact due date—most arrive within two weeks before or after.
Understanding Due Date Variability
Due dates are estimates, not guarantees. First babies often arrive late (41+ weeks), while subsequent pregnancies may come earlier. Use the countdown as a guide while remaining flexible. "Full term" begins at 37 weeks; most doctors won't induce before 39 weeks unless medically necessary.