Varies: Depends how accurate your due date estimates are. If you have a super-reliable dating then the reverse calculation is "pretty good," like within 3-4 days. If your EDD is +/- 2 weeks as it often is, then the reverse calculation will be not useful. Good wishes.
Answered 11/18/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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