BumpTally

Free Pregnancy Calculators

Every pregnancy date question, answered instantly — due date, weeks along, ovulation, implantation, fertile window and more. No sign-up, results as you type.

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Due Date

LMP + cycle length → your due date and milestones.

218k/mo ★

Pregnancy Week

How far along am I? Weeks, days and trimester.

how far along am i

Ovulation

Ovulation day + 6-day fertile window.

97k/mo

Implantation

Day-by-day window, days 6–12 past ovulation.

KD16 · low comp ★

Period

Your next 6 periods — start and end dates.

KD23 · $2.50 CPC

Conception Date

Reverse from due date: when did I conceive?

reverse calculator

Fertile Window

The 6 days each cycle when pregnancy is possible.

your 6 best days