Frustrated

Has anyone else ever experienced something like this...
I had my daughter in 2009 got an IUD put in and had it for 5 years. Never got my period in those 5 years. Got it removed aug 1,2014 didn't get my period still, never got positive ovulation tests, never had ewcm. But I ended up getting pregnet around sept 28. I then mc oct 18. My dr said go ahead and try again right away. Still no period :(  and bfn. I feel like my body is so confused.