I'm 7 weeks 4 days and uncomfortable? Need advice.

Mackenzie • R.I.P Baby L ❤ 1/12/15 Mommy loves you!
I'm 7 weeks 4 days. My sides are stretching it feels like. I have a little bump. I'm a small girl 5 feet 4 inchs. I weight 127 pounds prepregnacy. I have always been flat stomached and toned. I'm a fitness trainer but at 7 weeks 4 days I feel like there is litorly no room for the baby. I know it sounds dumb but I feel so full. It's uncomfortable. Is it just because my body has never stretched like this? Or because this feeling is normal to be uncomfortable? Anyone else feel this way?