Is there a possibility with bhcg of 5 that i could be pregnant? i am having a repeat in 4 days. i have had a fet day 5 embryo 10 days ago

Sounds low, but...: Patience is a virtue that all parents should seek. It is most valuable for raising children. A urine pregnancy test done correctly gives a reliable result 2-3 weeks after an embryo transfer (making it unlikely to be a false negative if it is negative). Hopefully, it will be a positive, but there should be no need to give it another thought until then.