Hi, I'm 5 weeks along on my first pregnancy. When I found out last week, it made a little sense, I thought, because I was gaining a little weight and my pants were tight. However, I started reading that you were supposed to lose, or gain little, in the first trimester. So, could someone tell me why I can barely fit in my clothes?! I've gained about 7 pounds, which is odd, because before I found out, I was dieting to try and stop the bloating.