Mama, I have to say, any belly pain during pregnancy needs a doctor's check-up na, okay? Even if it feels like it might be normal, better safe than sorry, lalo na ngayon ka pa lang sa second trimester.
Please contact your OB or go to the nearest clinic or hospital para ma-check agad. A few of us moms had random pains during pregnancy na turned out to be nothing, but the peace of mind from the doctor's visit was worth it talaga. Wishing you and baby all the best!