Ay, hindi ka lang! Dami sa amin na nakaranas ng abdominal pain sa first trimester, isa ako doon, sobrang nag-alala pa ako thinking something was wrong Normal siya usually dahil sa ligament stretching at hormonal changes, pero since it's your first pregnancy at concerned ka, I'd really suggest checking with your OB lang para ma-ease your mind at ma-confirm na everything's okay with baby.