What Causes Abdominal Distension And Body Changes While Having Regular Periods?

Hi, I am 29 years old woman. I got married 6 months back. I am not pregnant at this time as i could live with my husband for only 24 days after wedding but still my belly is growing bigger and I have regular periods. My hips size is changed also. I got a line also going from my belly button to pelvis. I have checked for not being pregnant using pregnancy strips. I wonder why my body is undergoing so many changes. Will be great if you could explain this. Best wishes. Amy