Cramping

I’ve had cramping on and off for the past 2-3 days? I’ve taken 2 tests in the evenings and I think they’re all negative. No signs of Aunt Flo yet. I have irregular periods so not sure when she should be coming but nothing yet. I think she should arrive shortly, hoping not 🤞🏼🤞🏼 has anyone had cramping before a positive test?? How many days of cramping did you have before a positive??