Nothing has been 100% consistant over five pregnancies (six if you count my chemical) but I consider it downright WEIRD that the latest model deviated from the pattern of the last four (with three different fathers) as far as my earliest and most reliable pregnancy symptom.
With all the other kids, the smell and taste of coffee and cigarette smoke became absolutely nauseating. I smoked when I became pregnant with the older kids, and quitting wasn't the issue, it was continuing to smoke enough long enough for the "gradual withdrawl" that the midwives insisted on at the time. I didn't want exy to know about ds right away, and I don't think I'll ever forget how miserable I was gagging down a cup of coffee and trying to smoke without puking so he wouldn't find out.
I did get the breast soreness with this one long before I tested (and I tested before
was due) and it was very intense! It felt like let-down, but it was painful, sort of like I imagine the phantom pains that amputees sometimes feel in their missing limbs must feel. At first it only came on when I read about or thought about babies, but then I got the worst agonizing case of it while I was reading about exploiter workers in 3rd world countries for my Sociology class. I can laugh now about how I wanted to give the whole human race nursies and make everything all better, but it certainly wasn't funny then.
With dd1, riding a motorcycle was positively excruciating because of the cold blast of wind on my breasts.
With both of the girls I was incredibly tired in the early first trimester and wanted to sleep all the time. With all three of the older kids, but especially dd1, I had to pee ridiculously often even before I tested, but this was another case where the babe in my belly has to be different and I had no urinary symptoms at all until the tail end of the 2nd trimester, when I finally noticed an increase in frequency, and didn't have any stress incontinence at all until I caught the flu a couple of weeks ago. Neither problem is particulalrly severe or interferes much in my day to day life, but it was BAD with the older kids.