Should I test?

I’m currently on cycle day 30. My usual cycles last 26-28days. I’ve had one cycle that lasted 29 days before with some very mild spotting on day 27/28.

This cycle I’ve had no spotting but a lot of cramping. I did take a test on cycle day 26 and it was negative. Not sure if I should test again or just wait it out. I’m scared to go by a test especially if I just end up starting later on tonight. Thanks for any advice!