ugh misscariage bleeding.. ready for my rainbow

so Idk if this is the right place to post this. I'm so eager to get on to be trying for my rainbow baby.. but It feels like forever I've been bleeding.. not bad.. but today is day 28. this past Wednesday levels were 200. 4 days before that they were 400. I don't know what they are but it's been 6 days since they were 200... how long after they are gone do you keep bleeding? :(