Baby bump Qs!

Hello mommies!! Sorry for this very random question. Hehe. Just wondering, anong exact part ng tummy ang lumalaki sa first trimester? Malaki talaga kasi puson ko to begin with so hindi ko alam if doon ba. Haha. Is it the lower tummy (baba ng pusod) or will it be the upper tummy (taas ng pusod)? #1stimemom #firstbaby