Why Does It Seem Like Since I Started Working Out

Why does it seem like since I started working out my stomach is ten times bigger.?? I had a baby six months ago. I have more stress incontinence with exercise as well. I feel disguisted with myself. How can I get rid of this stomach? I feel angry I urinate on myself. The harder I try to hold it the more it seems to come out. What can I do? Do
I have hepatitis ?