Hay, first time mom worries talaga ang dami! Honestly, every pregnancy is so different, one of my mum friends had a tiny belly at 33 weeks pero malakas ang baby, habang ako sobrang laki ko kaya nag-worry din ako, pero normal lang pala. The best way to really know kung okay ang baby and your tummy size is when you go to your OB next month, kaya don't stress too much in the meantime!