I had two boys then a girl. My symptoms were relatively the same, it was my body that was different. When I carried the boys, my boobs got a little bigger over time. With my girl, they were bigger immediately. I gained all my weight in my middle, all around, and my booty with my girl. I was a lot more round. I mean, I was running into things with my booty and my belly - ha!
My SIL had different symptoms for each pregnancy, but had all girls.