I OV early - will this affect due date?

[FlirtyThirty]

I have a 24-25 day cycle but I KNOW that I conceived between CD 7-10.
My LMP was 28 Dec so due date around 30 Sept by the online calculator...is this accurate given I know I OV early?

I am beginning to confuse myself....

Hi Flirty, my (old) book says that the 280 day calculation is based on a 28 day cycle, so it says if you have a 26 day cycle you reduce this by 2 days. If 30 day cycle, add on 2 days to their calculation, etc etc

And there is a leap year to factor in too....

HTH

I had an erpc in April which made my cycles unusually short. Normally I'm a clockwork 28-day girl, but they were suddenly 25 day cycles. This confused me to the point where I got pg with DC2 during a time when I ordinarily wouldn't be fertile, or so I thought. I mentioned this to the GP and the mw and predicted myself a due date of March 26th. However my "official" due date is March 29th as they both insisted on going by a 28 day cycle. Neither of my scans shifted the date as the sonographer said they factor in a difference of 3 days either way.

I don't really mind that my dd is the 29th. That being said I'd quite like it if DC2 comes on the 26th

Oh I meant to add, if you use the pregnancy calendar on the BBC website, you can set it to a 25 day cycle.