Ate, I totally get the paranoia, first pregnancy is like being a detective investigating your own body, diba? But mild cramping and that feeling can happen, lalo na with the white discharge you mentioned; it's usually just your body adjusting. That said, please check in with your OB soon, even just a quick call or message, hindi lang para sa peace of mind mo kundi para ma-confirm na lahat ay okay with the baby. Better safe than sorry, especially since you're worried na! You've got this, mama.