Anak, please go to your OB or emergency room agad if you haven't already, preterm labor signs need immediate medical check. I understand ang worry mo, sobra-sobra. A few of my mum friends din had scares like this during pregnancy, kaya alam ko ang anxiety. Your doctor lang talaga ang makakasiguro ng what's happening at what baby needs right now. Wag mag-internet lang, go straight to your hospital para ma-monitor properly. You and baby are what matter most, so please get checked ASAP. Thinking of you!