Health metrics

Period Calculator

Use Period Calculator in The Stash to evaluate scenarios quickly in a clean, branded workflow.

Try Period Calculator

Enter your values, review the result instantly, and test scenarios with updated inputs.

LMP date

Cycle length (days)

Period length (days)

Estimated ovulation: 2026-03-29

Fertile window: 2026-03-24 to 2026-03-30

Estimated conception day: 2026-03-29

Next period start: 2026-04-12

Next period end: 2026-04-16

Weeks from LMP today: 0 weeks (First trimester)

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