A little scared

I was cramping last night and was just thinking, "is this it?" I told Naty to pray that nothing bad would happen and he said he would. I woke up in the morning cramp free and feeling good now. It's a scary feeling because I don't remember cramping from my other pregnancies. I keep reading that it's normal but it had been days since I last cramped. I just kept going to the bathroom thinking I would see blood. I have also been really stressed out with the last of school, I have finals next week and I was told by the nurse to take it easy. That means I've gotta start studying now so that I'm not rushing last minute and trying to cram the night before, now that would make me really stressed.