Another miscarriage

Been TTC with my second for 2 years now. Had a positive test last spring followed by an early miscarriage and the same story this past week.  I'm trying to lose weight the healthy way and really struggling. Have had bloodwork done and my testosterone is on the high side of normal, but not out of normal range. Was having pelvic pains, but all ultrasounds came back beautiful. Even  after 2 positive preg tests on 2 different days, the blood tests were negative. I swear my doc thinks I'm crazy. I know I was preg though, tender breasts and all. Any ideas on what might be wrong? I have ghost symptoms, hair loss from my head, hair growth on my chin and stomach, hungry all the time, I have struggled with depression and anxiety for most of my life.  Is there something I am missing?