What is wrong with me??

Been TTC now for 4 years with my partner. At first I thought I had PCOS or endo every time I'm a few days late i will always get a faint line apparently it's just chemical pregnancies! I'm 25 recently had a Lap to see if there anything with me as I have very painful periods, and they range between 36-45 days and only last 1 day! When I'm ovulating I get really bad cramps and hip pain sometimes to the point I can't lift my legs my results from my lap all normal I had 1 miscarriage at 8 weeks and around 10 chemicals.. fighting and arguing with doctors to try and get an answer as to what is wrong with my body, I am really at my wits end :-(