Yes me again... with another question.

According to the doctor my EDD is 7th October. I googled due date calculators and this figure comes up if i put in a 28 day cycle, which from my past cycles i am not. I think I o'd around 18th Jan which some other calculators work out from o date which calculates my edd as 11th October. I am confused as to what my actual edd is because if i go off what my doctor has said then that means I will be six weeks on Sunday but if i go off the o date then i am 5 weeks and one day today.

I actually think the edd of 11th October is more correct according to my cycles.

What does everyone else think?