Should I be worried?

So we found out I was pregnant on February 1st. I had all the symptoms, fatigue, sore breast, mild headaches, some light dizziness, and mild cramping. According to the app I’m now 6w and 2days. I haven’t had any nausea except for yesterday morning and today. Yesterday I was experiencing cramps like period cramps and they were painful. The kind that make you clench your stomach and want to crawl into ball. They came and went and by mid day they were less intense. I thought I was getting my period but I checked and there was no blood. Should I be worried about the cramping? My 1st OBGYN appointment isn’t until March 6th. Any insight on this is much appreciated!