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Pregnancy

Talk about every stage of pregnancy, from early symptoms to preparing for birth.

Working out due date

1 reply

Unicorn234 · 14/08/2018 19:44

I found out I was pregnant on Saturday. I took a digital clearblue and it came up straight away saying 2-3 weeks. When I looked in the instructions it said my doctor would say that's between 4-5 weeks.
Anyway the first day of my last period was 6th July so I've worked it out that I'm 5 weeks +4
However last night I used an online due date calculator and it asked me for the first day of my last period and my cycle length.
Since coming off the pill in January my cycles have been between 33-37 days so i put 35 days into the calculator just as an average. The calculator came back saying I was 4 weeks? I don't understand it.. Lol your replies are much appreciated 😁

OP posts:
Bluebelltulip · 14/08/2018 19:54

At this stage all methods are a guess, due date gets fixed at dating scan @~12 weeks. Clear blue is basing it on hormone levels which can vary. Using just your last period assumes ovulation on day 14. Online calculator has moved it based on guessing when you most likely ovulated due to longer cycles. Midwife's use last period until dating scan.

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