Where's my bump??? getting nervous..

I'm 13/2 and I'm not showing .. I was a little chubby before but after having my daughter and showing at 9 weeks.. besides being super bloated.. I assumed I would show if not the same, but around the same date of pregnancy. I went to the doctor and weighed in at 168 when I was 10 weeks.. I went again for the 12 week appointment and weighed in at 160. I'm still wearing my size 8 jeans... comfortably and I still dont feel my belly hardening.. i know our little one is okay and thriving because I received a sono both visits.. is there any one else who is in my same boat? I feel so behind.. I can still put on belts!!! I mean??!?  Where's my baby bump?