Pregnancy and Weight Gain

When you get pregnant they say not start to really gain wait until after the first trimester and I have not which is good. Okay, maybe a pound or so depending on the day and how much water weight I have. I do know that I am experiencing some bloating that is making me look much more pregnant than I am. I know witht the second a person does show sooner but 9 weeks still seems early this seems crazy. I have heard people say that it is as a result of the body memory and its ability to remember past pregnancies. All I Know is that I start the day looking 9 weeks and end the day looking closer to twelve. I hope my 1st prenatal visit tomorrow gives me some answers and a sense that my tummy girth is normal.