Hcg 54?

Ladies I need some reassurance! I had my first beta drawn today. I'm 13 dpo today at cd 28 and was supposed to start af today. I've has positive hpts since Saturday (11dpo). My beta today is 54. I think that's kind of low, but my last pregnancy was a chemical pregnancy and my first beta with that was 17 so this is obviously much higher. Does anyone have a success story to reassure me or does this seem too low to be viable?