Ladies we should ( any OBGYN here? )

I think we need answers as to why we miscarried more then once back to back, I think there is more to it then the OBGYN telling us...
questions :
are we low-lack of  in this or that ? 
Should we go on early bed rest? 
Should we consult a fertility Doctor ? 
?????? Anymore questions ? I really need some serious answers before I TTC again