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How do you calculate due date after embryo transfer?

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2 fertility expert(s) answered this question

Answer from: Patricio Calamera, MD, MSc, ObGyn

Gynaecologist, Specialist in Reproductive Medicine
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Well, a calculation it’s the day of the transfer minus 19 days -will be the last period date. That it’s a formula actually, the computer gives it immediately but you have to add three months and rest 10 days and that would do the due date.

Answer from: Santiago Eduardo Novoa, MD

Gynaecologist, specialised in Reproductive Medicine
Instituto iGin
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The due date is calculated normally. We use any kind of online calculator – it is the easy way and there are some apps on the phone that we use. So you don’t have to be with the paper just adding or going forward and backwards just to establish it but anyway it depends which stage embryo has been transferred so, could be a Day 3 or Day 5 embryo, so we move back and we know that’s the ovulation day (that happens normally 15 days after your menstrual period), so we recalculate what was your menstrual period according to that and from that point, we calculate the due date as in any other spontaneous pregnancy, so we have to recalculate which was your menstrual period first day.

About this question:

How is due date calculated after transfer?

How do we calculate the due date after embryo transfer? Is there any different calculation for different protocols? What should be taken into consideration when calculating the due date?

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