It's been 9 years since my last m/c, so I can't remember how long these last.

I'm on day 6 now since I started heavy bleeding and cramping. Passed the placenta and cord Sunday eve, but no baby attached. So I think it was a blighted ovum.
But I am so exhausted! Is this normal? Today was the first day I have not had to take Advil for cramping, and bleeding has slowed down quite a bit. I'm guessing I'm somewhat anemic, so started iron today.
How long did yours last?