Hi Kitz, from memory i did the most growth in the last trimester, it was bizarre. A friend of mind grew so much in her last 5 weeks that by the time she had her son, when she sat down her tummy touched her knees! This is when bubs stacks on the fat for surviving out here. Everyone varies in size. I'm sure it's fine, but you know what they say, if you are concerned it is always worth getting checked just to put your own mind at ease. Best of luck with the next 10 weeks..very exciting!