HELPPPPPP

My period was due to start 3 days ago. I’ve been under an extreme amount of stress as I’ve just moved back into college. I had protected sex a few times this month. None of the condoms broke. I’ve take 3 tests. All 3 have been negative. I’ve been cramping on and off, mood swings, sore boobs for over a week now. I’ve also been spotting slightly when I wipe but then it stops. My tracking apps keep changing the days i’m supposed to start as well. I’m not pregnant right ?????