beta numbers

yesterday i found out that my first beta number from friday was 47. . . within normal range, but not very high.  i was 11dp5dt.
you can find anything on the internet to scare or comfort you. . . i read somewhere that a low number can mean chemical pregnancy (which nurse confirmed was possible).  then i read that IVF 5 day transfer can produce lower beta numbers at first. 
i took another beta yesterday and am waiting on results (hopefully today).
i don't think i slept at all last night . . .