All 3 of mine have been so different!
#1 I had some minor morning sickness when I got too hot, sensitive nose (I've always had a dog's nose anyway), but otherwise was fine until about 6mos when I suddently developped severe preeclampsia. Feet went from size 6.5 to an 11 in less than a month!! He was delivered via c-section @ 37 wks. Gained 50 lbs
#2 I had morning sickness throughout, gestational diabetes, major food sensitivities & horribly sensitive nose which led to more nausea, feet swelling (went from size 6.5 to 8.5). Had an episode at 37 wks that was similar symptoms to a minor stroke, but they were unable to diagnose. Gained 30 lbs
#3 (now 22 wks) I've been perfectly fine. I eat like a horse of course, which I did with the others too, but only get morning sick if I haven't eaten in a few hours. No major swelling or anything else. And I've not gained any weight yet- it just all shifted to my belly & boobs! LOL
Each pregnancy is so different, just as your kiddos are. We discussed our concerns at the 1st appt with #2 (diff doc than #1), and she said exactly that. You never know how it will go; you just wait & see. This time around, the only difference is she's already done the 1hr glucose test & I'll have to redo it at my next appt (normal time) and possibly at 36 wks since I had the diabetes before. No significant higher chances for any of the previous complications.
BTW.. I was 23, 28, & 29 with my kiddos, but with family history of menopause starting around 30-35, it's like I'm a much older mom physically.