Glad to hear your news Leo4.
My stomach is growing, but it's still not a bump at 17+4, just looks like fat. I have completely lost my appetite so am sticking to light meals in small portions. I'm pleased as this may mean I don't put on too much weight (had a BMI of 26 when I fell pregnant, so was overweight
).
I know of another lady who is 15 weeks + pregnant, and she is still a size 10, no tummy at all, lucky thing!
Can you tell I struggle with this part of pregnancy?! 
I am, however, incredibly grateful to be pregnant. A friend of mine has had some bad news at her 20 week scan and has been referred to a specialist hospital. I don't know the ins and outs yet, but it has reminded me, yet again, how precious these babies are.