tubel pregnancy

I'm so devestated I'm 4 weeks 5 days and just got rushed to e.r and had a tubel pregnancy. started out as implanation bleeding so I thought light pink mucus discharge lasted for days then it changed to dark brown 3 days ago and last night I had a gush of brown blood came straight to e.r BFN on urine test and still positive on HCG levels. I'm really torn away from this. my husband acted as if he didn't mind and I'm heartbroken. helpful advice please. encouraging words NEEDED