2nd pregnancy, feeling flabby

I know to not expect the second time around to be like the first in looks/weight gain perspective. But, I'm almost 19 weeks and have gained 12 pounds and feel like I just look awful. I'm 5'4'' 132lbs pre pregnancy, so fairly average I'd say. I guess I just thought I'd have a cute baby bump by now, and instead I feel like I just look like I'm totally letting myself go. I think what worries me most, is the 'belly' I do have isn't very firm like I distinctly remember it being last time, so I'm paranoid I'm just adding all of this fat and it's not just baby growing. Don't get me wrong, I feel incredibly blessed to be carrying this sweet little bundle! Just wondering if any of you other mommas felt the same!