calculating date of conception

hello every one.

I need help pleas,

I neede to calculate a date (date of conception)

I have a field which I call Terme LCC = 9 SA 6 Js whiche meens 9 weeks and 6 days

I need the date befor 9 weeks 6 days

thanks

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Community Expert

Date before what? The current time? If so, should it update each time the file is opened? If not, then when?

Known Participant

and if I have a lenth 25 mm this give me 9 weeks and one day

Community Expert

But again, compared to what it should be calculated, and when should it be updated?

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