Pregnancy & Fertility Tools
Free calculators that actually work. All data stays in your browser — we never see it. No signup required.
Due Date Calculator
Calculate your estimated due date using LMP with cycle length adjustment. Because not everyone ovulates on day 14.
IVF Due Date Calculator
Accurate due dates for Day 3, 5, or 6 embryo transfers. ASRM-aligned calculations.
Conception Date Calculator
Calculate from conception date or reverse-engineer your conception window from a known due date.
Cycle Tracker
Predict ovulation, fertile window, and next period. Optional BBT input for precision.
Trimester Planner
Enter your due date to generate a personalized week-by-week milestone timeline.
Fertility Window Calculator
Identify your 6-day fertile window using the sperm survival + egg viability method.
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