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    PLEASE NOTE: If you are not yet pregnant click here to check out one of our other pregnancy communities.
    what date should I go off? please help!
    An_250277 posted:

    I saw a Dr today and she was concerned since I have such irregular periods so wanted me to have an ultrasound to determine how far along I am.
    I managed to get in this afternoon and the ultrasound only showed the sac, and the lady estimated around 4 weeks, 5 days.

    Does this mean I say I am 4 weeks pregnant or 6 weeks pregnant? I get confused when a lot of sites count from the last period, so one site for example would say I am at 6 weeks now, not 4 weeks. I cant go off my last period though as it was 9 weeks ago!
    tlkittycat1968 responded:
    You're 4 weeks.

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