I do know that after having a baby once, you show much quicker in your other pregnancies since the uterus is already stretched. I cant speak from experience though since this is my first pregnancy. I'm 9 weeks and have a little pooch in my stomach but its probably mainly due to bloating and gas.
I have been drinking alot more water too. But not eating alot so that's why I was shocked. Lol. Glad to know I'm not the only one. :)
Probably bloating and water weight. I also gained about 5 pounds, and I've been drinking insane amounts of water, but eating less, and more healthy over all. I'm also 7 weeks and look visibly pregnant.