difficult getting pregnant

since my miscarriage last year. It has been extremely hard for me to get pregnant. first time I thought I was ended up being an ovarian cyst. once it went away we ttc again and this time I actually believed I did it due to 5 positive tests but was heartbroken when I went to the hospital and found out im not pregnant just have a fibroid in my uterus. now after having a 12 day late period I started my period. my bf and I both are at the point that we feel like giving up. I literally cried for hours.