A little bit of a temperature but baby is acting completely normal?

My daughter is 5.5 months old and for the last 2 days she's had a temp of 100.7. She's acting completely normal and fine. I'm a little worried but I don't want to bring her in and expose her to more germs or the flu. Could it be teething or should I bring her in to see if she has an infection? First time mom and always worried. Thanks:)