HI, thanks for using healthcare magic
levels rise soon after implantation
. It is estimated that a blood test
can detect levels as low as 5 mIU/ml.
The level is approximated to be between 0 to 5 at about seven days after conception and between 5 to 430 at 14 days after conception . It doubles every few days.This means a blood test can be done after 7 days.
There are now some early detection pregnancy
kits that can detect levels less than 10. These can also be used at this stage.
You can speak to your local pharmacist to see if any of these are available
I hope this helps