You have no HIV concern.
The amount of blood on a glucometer strip is so minute, you cannot get infected with HIV by being exposed to a few drops of blood anywhere on your body (even in a cut).
You don't need testing.
Thank you so much! Do u feel I should test incase?
Your supervisor is correct. This is no risk event if the patient has HIV, which it seems she does not. If you didn't notice any blood contacting your mouth or eyes, you can safely assume it didn't happen, or with such a small amount there would be realistic risk of infection.
So don't worry about it. You can count on a negative test in 2 weeks.
Best wishes for a successful delivery and healthy baby!