5 weeks 6 days steady cramping

So we went out for dinner last night for the new year. I had a different kind of cramping pain. It was on one side. It went away after an hour or so. I do not have my first doctors appointment until the end of the month. Is it all in my head? I feel like every pain or discomfort is a sign of miscarriage or an atopic pregnancy. I'm feeling fine this morning nor pain what so ever. Anyone else feel like this?