Anybody elses period 3 days late?

I was suppose to get my period the 7th. . But I haven't gotten it yet. It's now the 10th and I haven't had any PMS symptomes. Except for the mere fact that my breast feel more bigger and my nipples get quite sore/itchy. I usually get cramps before my period or my vagina burns for some strange reason but none of them had occurred. I'm not stressed at all and my period is usually a 28 day cycle and always regular. I'm kind of scared to take a test for the mere fact of it being negative. . Any suggestions, darlings?