Pregnancy #2 weight gain

I've always heard with pregnancy number 2 (or 3 or 4 etc) that you start showing sooner and are potentially at more risk of gaining more weight. I'm only 15 weeks and this past week I feel like I blew up! My first pregnancy I was just starting to show the cutest little baby bump at this time. Now I'm so fat! I know I probably shouldn't say it like that. pregnancy is a beautiful thing. But there is a huge difference between my first and second. Just saying how I feel and I feel huge! I definitely need to be careful about weight gain this pregnancy!