Sherrine, I am so sorry to hear that! I know exactly how you are feeling. I had to put 3 of my German Shepherds down within a three year span. The first in 2007, he was 11 and ended up bloating on me. The second in 2008, he was 7 and had renal kidney failure. And finally the third in 2009, she was 9 and had the same thing your baby had, spleen and liver cancer.
At least God took her home, and honored your prayers, instead of you having to make the difficult decision yourself. I am now, unfortunately, caring for another one of my babies who has Degenerative Myelopathy, he is going to be 9 in April, God willing he makes it until then. If you don't mind me asking, what kind of dog was she? She will always be with you in spirit, and in your heart, please remember that.......many, many, comforting hugs coming your way.....((HUGS)) Fox