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If your ultrasound says you are 4.5 weeks pregnant you conceived 2.5 weeks ago. Historically pregnancy is counted from the first day of the last period although of course you don't actually conceive until (on average) 2 weeks later.

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Q: Your ultrasound said you are 4.5 weeks pregnant But did you actually conceive 4.5 weeks ago or 6.5 or 2.5 you think theres a period of 2 weeks that they add or subtract Does anyone have the answer?
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Related questions

When did you conceive if your ultrasound says you are fourteen weeks pregnant?

Subtract fourteen weeks (7 days x 14) from the date of the ultrasound.


When did you conceive if given a February 14 2013 due date?

Subtract 9 months!


When was my baby conceived if on July 21st I was 11 weeks and 1 day according to my ultrasound?

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When given a dating ultrasound do you need to subtract two weeks for an actual date?

When you have a dating ultrasound you are given an EDD (estimated date of delivery) If you count back 40 weeks from this date it should be about when your last period was. If you do not have a regular cycle they may not correlate exactly. 38weeks back from your EDD is approximately when you conceived.


Does subtract mean difference?

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If your due date is March 19th did you conceive on May 27th?

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When did you conceive if your due date is 14feb?

Since the human gestation cycle is 9 months, and there are 12 monthe in a year, you can subtract 9 months, or add three months - either way, we know what you were doing last May 14Th! LOL