I checked my temperature at 97.6 then three min later i checked again and it was 98.9... which one do i trust? and is either one bad or a reason to be worried?

Normal Temp: The average normal body temperature is generally accepted as 98.6°F (37°C). Some studies have shown that the "normal" body temperature can have a wide range, from 97°F (36.1°C) to 99°F (37.2°C). A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness. Temp over 104 requires DR. Variations can be due to temp taking technique, location, & environment.

Body temperature: Body temperature follows the circadian rhythm and so it is normal for your temperature to fluctuate throughout the day. Temperature is lowest in the early morning before waking up from sleep and is highest in the afternoon time. In women, temperature also varies throughout the menstrual cycle. A fever is a temperature at or above 100.4 F and hypothermia is a temperature below 95 F.