Negative

I feel like, I will never get pregnant, earlier this month I had all the systems of being pregnant and after a while I took several test and they all came back negative, me and my bf have been trying for 3 years, last time I was pregnant I had a miscarriage and that was 3 years ago, but I feel like I cant give this to him and so scared I will never have a baby, ive been wanting this for years and it feels like I can't do this, the one simple thing in life..... my heart is litterly broken and sitting on the bathroom floor crying