Am i pregnant

Female, 31

Hi,i had my embryo transfer on dec 2 and 3 embryos r transferred after 3 day from retrival.i have been given hcg 5000iu once for every 3 days and progesterone injections daily.my beta hcg is done Today n result is only 19. what does that mean am i pregnant?did any one with lower than 19 r 19 in beta hcg after icsi got pregnant