Af came today. 4 days early. Right now the cramps are so severe I'm in tears. I didn't have my usual af symptoms and af is almost always 28 0r 29 days. The blood is very dark brown and it's always bright red on the first day of af. Are these symptoms consistent with someone who has miscarried before? I didn't think anything of the dark blood earlier but now with these severe cramps I'm thinking something unusual is definitely happening. Especially since they keep coming I'm in spurts similar to contractions.