Stressing/paranoid - please tell me I’m being crazy

Okay, I had my period this month, but it was very irregular.. the first day, I had extreme cramping and a dark red flow. The second day, it was a very light flow but had clots here and there. Day three, hardly anything. Super light. Day four, it was straight up brown discharge/old blood. Lately I’ve been feeling super bloated, having indigestion issues and kind of dizzy. So even though I’ve just had my period, I’ve convinced myself that I could be pregnant. Please, someone tell me I’m just being paranoid. I’m also too scared to take a test, fearing that it’ll come out positive and I’ll have an absolute meltdown. I’m going to be an anxious mess until my next period comes around