Hello, I'm 16 weeks pregnant tomorrow and I still haven't put on a single ounce of weight in fact I've most a few of my pre-pregnancy kilos. No morning sickness so it's not that. I also have low Papp-a which puts me at risk at low birth weight later in pregnancy so I'm totally paranoid that the baby isn't growing or that I'm not doing enough to nourish them. Most sites say I should be gaining weight by now. Have any of you had any experience of no / low weight gain and everything been ok? Xx