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Have a question about our calculators, a suggestion for a new tool, or feedback to share? Send us a message and we’ll get back to you as soon as we can.
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Quick Answers
Can you check my calculator results for me?
Our calculators give general estimates, and we aren’t able to review personal results. For a due date or fertility question about your own situation, please speak with your doctor or midwife.
I think a calculator gave a wrong result. What should I do?
Please choose “Report a problem or error” in the form and tell us which calculator you used, the values you entered, and the result you saw. This helps us look into it quickly.
Do you store the dates I enter in the calculators?
No. Our calculators work in your browser, so the dates you enter are not sent to us or saved. Only messages you choose to send through this contact form reach us.