Uy, mama, this is really important, please call your OB or go to the hospital right away to tell them about this, okay? Hindi ito pwedeng antayan lang. Your doctor needs to know exactly what happened and when so they can check on baby properly.
I know it's scary, pero ang doctors natin ay may way to help and guide you through this. Don't worry about the negative test, tell your OB everything, at sila na ang mag-aalaga sa inyo. You did the right thing by being concerned. Rooting for you and baby, mama.