Honey - if you are worried go and see your Dr.

But I wouldn't stress too much. I know several larger people who lost weight during pregnancy. So long as you are still eating (no matter now uninteresting the food is) you should be fine. Remember that your body will naturally give your baby everything that she needs, even if that means stealing it from your body - so make sure that you are getting enough iron and calcium etc.

I am guessing that you will probably have a midwife appointment soon - mention it to them if you havne't checked with anyone else before then.