I had very light spotting in my last pregnancy which ended in a mmc, I'm pregnant again (6 weeks 5 days) so you can imagine the panic when the same happened last week and yesterday I began bleeding heavily and passing large clots (sorry for tmi!), I was freaked out and thought it was the beginning of the end, EPC scanned me this morning and I do have a large bleed but baby it totally fine in their little sac, if you are worried at all then call you local early pregnancy clinic. Xx