Is 96.8 normal temp for baby?

My son had a fever last night and wasn't feeling very well, I gave him Motrin and that seemed to work but today he's been looking a little off, he looks too calm (not running around like he usually does) I checked his tempt and it was 96.8 checked again 30 mins later and dropped to 96.5 is this normal? Should I take him to the ER?