Conception Calculator

Conception Calculator is your all-in-one companion for planning, predicting, and tracking pregnancy — with everything kept private on your device.

Trying to conceive or already expecting? Get clear answers and simple tools in one calm, easy-to-use app. No account, no ads, and nothing leaves your phone.

CALCULATE WITH 5 METHODS • Last menstrual period (adjustable cycle length) • Known due date • Known conception date • Ultrasound dating • IVF transfer (Day 3, 5 or 6)

INSTANT, DETAILED RESULTS • Estimated conception date and conception window • Estimated due date and ovulation date • Current week, trimester, and progress • Days remaining until your due date • Baby's star sign and birthstone

FOLLOW EVERY WEEK • Week-by-week guide from week 1 to 40 • Baby size, length and weight each week • Growth charts that highlight your current week

TRACKING • Period & cycle log with next-cycle prediction • Fertility log: temperature (BBT), OPK, cervical signs • Ovulation & fertile-window calendar • Kick counter with an adjustable goal • Contraction timer with length and spacing • Weight tracker with trend chart and total change • Symptom & mood log • Appointments & tests, with reminders • Checklists: hospital bag, baby essentials, to-dos • Baby name explorer with a favorites shortlist • Bump photo journal kept on your device

STAY ON TRACK • Optional reminders: weekly milestones, due-date countdown, daily check-in • Home screen widget with your current week and days to go

SHARE & KEEP SAFE • Share a progress update with your partner or family • Export a PDF summary for your provider • Back up and restore your data anytime

PRIVATE BY DESIGN Your information is stored only on your device. We don't collect it, upload it, or sell it. Data leaves your phone only when you choose to share, export, or back it up.

IMPORTANT Conception Calculator provides estimates and tracking for general information only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Estimated dates can vary. Always consult your healthcare provider for medical guidance and pregnancy dating, especially from an early ultrasound.