I've been counting days and my period was 2 1/2 to 3 weeks late. So I woke up this morning with some spotting and I thought it was my unusually (for me) very late period. But maybe 2 hours later I started having extreme cramping in my lower abdomen and aching in my lower back. There is moderately heavy bleeding with a decent amount of tissue. My breasts also ache but not like they usually do when I get my period. The cramping was/is so bad I can't stand even with pain meds. Does it sound like a miscarriage or a really weird, first of it's kind (for me) period?