This pregnancy is much different for me as well. This is my 3rd pregnancy, but like Xine, will only be my 2nd child, and I'm almost 9 weeks. This time around I feel like I'm being SO much more careful about stuff like what I eat, because of the mc I suffered in January. I'm just paranoid I guess, and I didn't feel that way with my ds. Physically I don't feel as tired as I did with my first or second pregnancy, which I think is a bit strange because I'm so busy with a 14 mo. But with him I did have to get up and work a full time job in retail (so always on my feet), so I was always exhausted it seemed. I haven't had sore bb's once, either! And I remember that being one of the worst symptoms I had the first time around. I don't have as much nausea either. Last time it was pretty much 24/7 from the 6 week point until the 12 week mark. This time, it's been off and on from about 6 weeks, but I have had hardly any in the past week or so. I also find that I am SO much more bloated this time around. I remember being quite bloated around the 12 week mark with ds, but this time I got that way before my bfp, and I am still crazy bloated. I really look pregnant, already. Especially after a big meal!
Other than that, I think the time is going by a lot faster than it did with ds, but probably because I don't think about it all the time like I did with him. I have found myself even forgetting at times that I am pregnant at all, which I guess is good because I'm not feeling too terrible.
Oh, and with ds I had TERRIBLE lower back pain from about 6 weeks until well into the second trimester, and this time it hasn't been nearly as bad.
P.S. I remember leaking quite a bit of urine with ds as well when I would sneeze or laugh. I don't remember when it began, I think somewhere around the 20-24 week point. I think I did a lot of kegals too, and I still had the problem, but the exercises will probably improve the leakage a bit for you anyway... Worth a shot, I guess!