Late period

Elizabeth

I am 8 days late and I’m usually always right on time. I’ve taken 3 pregnancy tests, and all were negative, I’ve had a few days where I was crappy and I was like ok it’s coming but it hasn’t. Has this happened to anyone else? I also don’t really have any pregnancy symptoms besides missed period. The first time I went off birth control like 3 years ago I didn’t get a period for six months and ended up getting medicine to jumpstart my period again but this time I’ve been off my birth control since November and had regular periods for the last three months, I just don’t know what’s going on and am wondering if I should go to the dr of wait.