5 days late

Shana

My last period was on July 4, I usually have a 4-5 day period but it lasted 9 days last month. Ive always been on a 28 day cycle. According to the app I should have started on August 1, but I didn’t. Ive had light cramping here and there and pretty constant lower backache. I have taken tests from the day of my missed period but they’re all negative. Am I just late or testing too early? Also, my husband and I bd everyday of my fertile window.