Ferritin levels

I’ve been ttc for a couple of years with 2 loses. I just found out in January my ferritin levels were a 7 and have been put on high dose iron tablets, March they were a 36 and last week at 65. Doctors have now put me on a years worth. Trying not to pin my unexplained infertility on this but doctor said it could very well be contributing. Has anyone had similar experiences?