Welcome Audrey!!!!!
I'm in the medical field,and although I'm not a Doc,I will tell you that you bleeding that much that often is very unhealthy.That is far from normal and any Doc insisting that it is,is out of his mind.Tell him to try and bleed for 1 month or longer and then come and tell you if he thinks thats normal

Go see another OBGYN and if your not satisfied,go to an Endocrinologist,and just keep on if you have to.But don't let nobody try and tell something is normal when you know it's not.
Secondly,with you TTC,keep seeking and following medical treatments and advice,I know it gets frustrating and discouraging,but if you haven't already,add some Prayer and Faith,I guarntee that'll help things out too
Good Luck and God Bless