I'm never late. well, i was twice and both times I was pregnant with my DSs.
I was due on Saturday and didn't test because being pregnant now would really change things for us. DS1 has just been diagnosed as SN and Ive only just got my head round that.
Came on on wednesday night, really really heavy, clots, so much more painful than usual. I usually get bad pain first 24 hours but I am sitting here in agony.
Does it sound like an early miscarriage? 
Do I need to get checked to make sure nothing is left behind if it is?

Thanks in advance.