Second baby; still not showing.

Jessica • Mom of 2 boys, 1 girl🧒🏼👦🏼👦🏼26 years young. Engaged💝💍
So I'm 13 weeks tomorrow. I've gained weight but I'm not actually getting a bump. Just getting chubbier in the belly and hips. Everyone else I see who is pregnant with there second have been showing for a while. Should I be concerned? Had two missed miscarriages last year so I'm worried that my baby stopped developing. This was me at 12 weeks.