I haven't had time to read it yet, but browsed it briefly and it looks similar to something I've read before. I also am sure of when I O'd (new years day) and early dating put it one day later and then another early u/s put it one day even later (so sept 26 instead of the 24) but its fine by me I'd rather have a later date and it could have taken a few days for the little swimmers to implant.
One thing I read from another article and this one may have mentioned it also, but EDD for first time mothers is slightly longer than 2nd or 3rd timers. Also, women with longer cycles (i have a 32 day cycle) have longer gestational periods than the ones with the average 28 day cycle. I thought that was really interesting and wasn't sure if this article touched upon it.
With DD I was clueless.. I got pregnant my first cycle off the pill and wasn't expecting it. I was told to give my body a month to get the pills out of my system and then to start TTC. Yeah, so I had no idea when I O'd or when we'd even had sex that month and they moved my dates all over the place. I always say i went late with her (40w5d) but when I think about it my original EDD according to my LMP was changed at my 13 or 20 week u/s. So DD may in fact have been "early". She had alot of signs of being early (she was covered with a thick layer of vernix, she was merely 7lbs8oz average weight, etc). However because of a prior stillbirth at 26 weeks a year earlier, the MWs got nervous and wanted to induce and thus did a membrane sweep (I was being impatient also) and she came that night.. I wonder how long she would have gone if my dates wasn't changed and I wasn't scared into facing an induction the next day if the sweep didn't work.
Jade, momma to Ariana 5/23/06 and Trystan 9/28/10