If your cycles are really only 22 to 26 days, I would think you would not ovulate particularly late in the cycle. Ask your doctor if he will order two quantitative beta hCG counts, 48 hours apart. If the hCG value is doubling or near doubling, then you can just assume you ovulated late, or that there was a measuring mistake or mistake computing your GA.
Also when i count backwords 7w6d its june 16th this all is a mess i tryed to learn wheni was pergnant with my son but still no luck
I went in on thursday the 8 th my ga was 8w 6d and then they said i was 7w 5d that i concived around the 28th 29th i was expecting my period the 5 the of july so to me it seems really late when every chart iv done says i woulf of concived around the 20 th 21st i have been tracking my period for about a year my cycle is 22 to 26 days thats y it has me off.
On what date (i.e., yesterday, last week, today?) did they tell you that you were 7w6d? And did this date come from measuring the baby with an ultrasound? Though, if the ultrasound was done today, it would seem like it was about a week less than you would expect from just the calendar, it is also possible that you simply ovulated a little later than average.