How accurate are the weeks/EDD on Flo app

[Natpowell123]

I’ve recently had several positive pregnancy tests. The first day of my last period was 22nd August, my cycle only lasted about 4 days. When putting in that date to Flo and other tracking apps it says I am 3 weeks 6 days but on my digital CB test it says 1-2 weeks. I know I’m still in VERY early days but following a miscarriage in March I can’t help but feel like I need some sort of answer as to how far I actually am. Any advice or experience would be greatly appreciated xxxx

That tallies. You have to add two weeks to the clear blue test.

Have you tried using a due date calculator?

I use this https://www.calculator.net/due-date-calculator.html

based on what you’ve explained, 3w 6d would be how you would be dated by nhs as it’s tracked from first day of your last period. But you actually likely concieved 1-2 weeks ago. Thus why clearblue showing different timescale.

My cycles aren’t always 28 days long. Can vary 28-31 so depending on which I put into the calculator it can change the date slightly. Thankyou so much for linking that! xx

Mine too, if you track it pop in the average over the last few months. Mine average out at 33 and that was bang on with my due date the nhs have given. You might be a few days either side, but due dates are worked out eventually by the size of baby at your 12 week scan.