10 days before is way too soon! You should atleast wait until your 4th day before your period and even with that there is a chance the test won't pick up your levels. I know that you are anxious and this all sounds "better said than done". But keep positive and stress as less as possible. I wish...
...their environment? The environment influences how people live and work.
A. They terraced their fields
B. They created paddy fields
C. They used horses for plowing
D. They invented the slash-and burn technique