What Are The Chances Of Me Having A 3rd Miscarriage

What are the chances of me having a 3rd miscarriage if I expirenced 2 already I went to the hospital last Friday they checked if I was pregnant indeed I was but I also have a UTI, they gave me antibiotics for the UTI that pregnant woman take , ive been having brown discharge ever since but today I had bright yellow mixed with dark brown clots of blood I’m worried, is that normal ?