Weight Loss

I’m 21 weeks today and this is my first. I’m excited but also nervous because I haven’t had much morning sickness but I’ve actually lost weight since becoming pregnant. My diet has changed much although I’m usually not as hungry throughout the day. My sonogram is this Friday and I will ask my doctor to see if he’s concerned but I’ve been feeling the baby move over the past week so that’s obviously a good sign. As long as this is normal then I’m all for losing weight but is anyone else experiencing weight loss?