Hi lovely, you shldn't worry so much about not gaining weight. As long as the baby is growing well then it should be ok. For me, my weight gain stabilized by 3rd trimester. Generally women put on 10-15 kg during pregnancy. I put on 10kg. I have a friend who put on only 1kg, minus her baby's weight of cos. I'm so envious of her! Grrrr.... But her baby was reasonably ok in birth weight.