Cramps but no period?

Al
AF was due today and has not arrived. My breasts have been sore for days and faint cramps for about 2. A few days ago I had some weird dark bloody tissue thing in my urine (sorry if TMI). Anyways, my period is always on point. I feel like I'm prob going to get it as soon as I post this 😞 but has anyone had cramping and no period and then found out they were pregnant?