Is 99.7 considered a fever?

No: In medical practice, a significant fever is considered to be a temperature of 100.4 or greater.

Yes: If the oral temp is higher than 98.6 it is a low grade fever. Some physicians consider less than 99.5 ok, but in my experience most patients normal temperature is less than 98.6 and a temperature over 98.6 was definitely abnormally high and a sign of illness usually.